A search for resonance decays to lepton+jet at HERA \\ and limits on leptoquarks
ZEUS Collaboration
A search for narrow-width resonances that decay into electron+jet or neutrino+jet has been performed with the ZEUS detector at HERA operating at center-of-mass energies of 300 and 318~$\gev$. An integrated $e^+p$ luminosity of 114.8~$\pbi$ and $e^-p$ luminosity of 16.7~$\pbi$ were used. No evidence for any resonance was found. Limits were derived on the Yukawa coupling, $\lambda$, as a function of the mass of a hypothetical resonance that has arbitrary decay branching ratios into $eq$ or $\nu q$. These limits also apply to squarks predicted by $R$-parity-violating supersymmetry. Limits for the production of leptoquarks described by the Buchm$\ddot{{u}}$ller-R$\ddot{{u}}$ckl-Wyler model were also derived for masses up to 400~$\gev$. For $\lambda$~=~0.1, leptoquark masses up to 290~GeV are excluded. %The limits vary with the resonance type, but extend to masses %of $283\gev$ for $\lambda=0.1$.
DESY-03-041.tex

\documentclass[zpreprint,zbstdefault]{./LaTeX/zeus/zeus_paper}

\usepackage[english]{babel}

\input ./LaTeX/zeus/zeus_def.tex

\input ./LaTeX/user/def.tex

%\input  resonance-cit.tex
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\def\citeCTD{{\cite{%
nim:a279:290,*npps:b32:181,*nim:a338:254%
}}\xspace}
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%	-> CAL
%------------------------------------------------------------------------------
\def\citeCAL{{\cite{%
nim:a309:77,*nim:a309:101,*nim:a321:356,*nim:a336:23%
}}\xspace}
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%	-> lumi
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\def\citeLumi{{\cite{%
desy-92-066,*zfp:c63:391,*acpp:b32:2025%
}}\xspace}
%------------------------------------------------------------------------------
%	-> D0
%------------------------------------------------------------------------------
\def\cited0lq{{\cite{%
DO_1stlq_eejets,*DO_1stlq_results,*DO_1stlq_sum,*DO_1stlq_nunujets%
}}\xspace}
%------------------------------------------------------------------------------
%	-> CC papers
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\def\citezeusccpaper{{\cite{%
epj:c12:411,*pl:b539:197%
}}\xspace}

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%==============================================================================
%%\includeonly{resonance-tit,resonance-txt,resonance-ref,resonance-tab,resonance-fig,auth106_out}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\prepnum{{DESY--03--041}}

\title{
A search for resonance decays to lepton+jet at HERA \\
and limits on leptoquarks
}                                                       
                    
\author{ZEUS Collaboration}
\draftversion{3.6}
\date{March 2003}

\abstract{
A search for narrow-width resonances that decay into electron+jet 
or neutrino+jet has been performed with the ZEUS
detector at HERA operating at
center-of-mass energies of 300 and 318~$\gev$.
An integrated $e^+p$ luminosity of
114.8~$\pbi$ and $e^-p$ luminosity of 
16.7~$\pbi$ were used.
No evidence for any resonance was found. Limits were derived
on the Yukawa coupling, $\lambda$, as a function of
the mass of a hypothetical resonance that 
has arbitrary decay branching ratios into $eq$ or $\nu q$.
These limits also apply to squarks predicted by
$R$-parity-violating supersymmetry.
Limits for the production of leptoquarks
described by the
Buchm$\ddot{\rm{u}}$ller-R$\ddot{\rm{u}}$ckl-Wyler model
were also derived for masses up to 400~$\gev$. 
For $\lambda$~=~0.1, leptoquark masses
up to 290~GeV are excluded.
%The limits vary with the resonance type, but extend to masses 
%of $283\gev$ for $\lambda=0.1$.
}

\makezeustitle

%%\include{resonance-tit}

%%\include{auth106_out}
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%  MEMBER NAME  AUTH106 (ZEUS)     M  TEX                                                          
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%%\topmargin-1.cm                                                                                    
%%\evensidemargin-0.3cm                                                                              
%%\oddsidemargin-0.3cm                                                                               
%%\textwidth 16.cm                                                                                   
%%\textheight 680pt                                                                                  
%%\parindent0.cm                                                                                     
%%\parskip0.3cm plus0.05cm minus0.05cm                                                               
\def\3{\ss}                                                                                        
\newcommand{\address}{ }                                                                           
%%\renewcommand{\author}{ }                                                                          
\newcommand{\author}{ }                                                                          
\pagenumbering{Roman}                                                                              
                                    % this "%"s are for cosmetics only                             
                                                                              
                                                   %                                               
\begin{center}                                                                                     
{                      \Large  The ZEUS Collaboration              }                               
\end{center}                                                                                       
                                                   %                                               
  S.~Chekanov,                                                                                     
  M.~Derrick,                                                                                      
  D.~Krakauer,                                                                                     
  J.H.~Loizides$^{   1}$,                                                                          
  S.~Magill,                                                                                       
  B.~Musgrave,                                                                                     
  J.~Repond,                                                                                       
  R.~Yoshida\\                                                                                     
 {\it Argonne National Laboratory, Argonne, Illinois 60439-4815}~$^{n}$                            
\par \filbreak                                                                                     
                                                  %                                                
  M.C.K.~Mattingly \\                                                                              
 {\it Andrews University, Berrien Springs, Michigan 49104-0380}                                    
\par \filbreak                                                                                     
                                                  %                                                
  P.~Antonioli,                                                                                    
  G.~Bari,                                                                                         
  M.~Basile,                                                                                       
  L.~Bellagamba,                                                                                   
  D.~Boscherini,                                                                                   
  A.~Bruni,                                                                                        
  G.~Bruni,                                                                                        
  G.~Cara~Romeo,                                                                                   
  L.~Cifarelli,                                                                                    
  F.~Cindolo,                                                                                      
  A.~Contin,                                                                                       
  M.~Corradi,                                                                                      
  S.~De~Pasquale,                                                                                  
  P.~Giusti,                                                                                       
  G.~Iacobucci,                                                                                    
  A.~Margotti,                                                                                     
  R.~Nania,                                                                                        
  F.~Palmonari,                                                                                    
  A.~Pesci,                                                                                        
  G.~Sartorelli,                                                                                   
  A.~Zichichi  \\                                                                                  
  {\it University and INFN Bologna, Bologna, Italy}~$^{e}$                                         
\par \filbreak                                                                                     
                                                    %                                              
  G.~Aghuzumtsyan,                                                                                 
  D.~Bartsch,                                                                                      
  I.~Brock,                                                                                        
  S.~Goers,                                                                                        
  H.~Hartmann,                                                                                     
  E.~Hilger,                                                                                       
  P.~Irrgang,                                                                                      
  H.-P.~Jakob,                                                                                     
  A.~Kappes$^{   2}$,                                                                              
  U.F.~Katz$^{   2}$,                                                                              
  O.~Kind,                                                                                         
  U.~Meyer,                                                                                        
  E.~Paul$^{   3}$,                                                                                
  J.~Rautenberg,                                                                                   
  R.~Renner,                                                                                       
  H.~Schnurbusch$^{   4}$,                                                                         
  A.~Stifutkin,                                                                                    
  J.~Tandler,                                                                                      
  K.C.~Voss,                                                                                       
  M.~Wang,                                                                                         
  A.~Weber$^{   5}$ \\                                                                             
  {\it Physikalisches Institut der Universit\"at Bonn,                                             
           Bonn, Germany}~$^{b}$                                                                   
\par \filbreak                                                                                     
                                                  %                                                
  D.S.~Bailey$^{   6}$,                                                                            
  N.H.~Brook$^{   6}$,                                                                             
  J.E.~Cole,                                                                                       
  B.~Foster,                                                                                       
  G.P.~Heath,                                                                                      
  H.F.~Heath,                                                                                      
  S.~Robins,                                                                                       
  E.~Rodrigues$^{   7}$,                                                                           
  J.~Scott,                                                                                        
  R.J.~Tapper,                                                                                     
  M.~Wing  \\                                                                                      
   {\it H.H.~Wills Physics Laboratory, University of Bristol,                                      
           Bristol, United Kingdom}~$^{m}$                                                         
\par \filbreak                                                                                     
  %                                                                                                
  M.~Capua,                                                                                        
  A. Mastroberardino,                                                                              
  M.~Schioppa,                                                                                     
  G.~Susinno  \\                                                                                   
  {\it Calabria University,                                                                        
           Physics Department and INFN, Cosenza, Italy}~$^{e}$                                     
\par \filbreak                                                                                     
                                      %                                                            
  J.Y.~Kim,                                                                                        
  Y.K.~Kim,                                                                                        
  J.H.~Lee,                                                                                        
  I.T.~Lim,                                                                                        
  M.Y.~Pac$^{   8}$ \\                                                                             
  {\it Chonnam National University, Kwangju, Korea}~$^{g}$                                         
 \par \filbreak                                                                                    
                                                   %                                               
  A.~Caldwell$^{   9}$,                                                                            
  M.~Helbich,                                                                                      
  X.~Liu,                                                                                          
  B.~Mellado,                                                                                      
  Y.~Ning,                                                                                         
  S.~Paganis,                                                                                      
  Z.~Ren,                                                                                          
  W.B.~Schmidke,                                                                                   
  F.~Sciulli\\                                                                                     
  {\it Nevis Laboratories, Columbia University, Irvington on Hudson,                               
New York 10027}~$^{o}$                                                                             
\par \filbreak                                                                                     
                                                    %                                              
  J.~Chwastowski,                                                                                  
  A.~Eskreys,                                                                                      
  J.~Figiel,                                                                                       
  K.~Olkiewicz,                                                                                    
  P.~Stopa,                                                                                        
  L.~Zawiejski  \\                                                                                 
  {\it Institute of Nuclear Physics, Cracow, Poland}~$^{i}$                                        
\par \filbreak                                                                                     
                                                           %                                       
  L.~Adamczyk,                                                                                     
  T.~Bo\l d,                                                                                       
  I.~Grabowska-Bo\l d,                                                                             
  D.~Kisielewska,                                                                                  
  A.M.~Kowal,                                                                                      
  M.~Kowal,                                                                                        
  T.~Kowalski,                                                                                     
  M.~Przybycie\'{n},                                                                               
  L.~Suszycki,                                                                                     
  D.~Szuba,                                                                                        
  J.~Szuba$^{  10}$\\                                                                              
{\it Faculty of Physics and Nuclear Techniques,                                                    
           University of Mining and Metallurgy, Cracow, Poland}~$^{p}$                             
\par \filbreak                                                                                     
                                                           %                                       
  A.~Kota\'{n}ski$^{  11}$,                                                                        
  W.~S{\l}omi\'nski$^{  12}$\\                                                                     
  {\it Department of Physics, Jagellonian University, Cracow, Poland}                              
\par \filbreak                                                                                     
                                                           %                                       
  V.~Adler,                                                                                        
  L.A.T.~Bauerdick$^{  13}$,                                                                       
  U.~Behrens,                                                                                      
  I.~Bloch,                                                                                        
  K.~Borras,                                                                                       
  V.~Chiochia,                                                                                     
  D.~Dannheim,                                                                                     
  G.~Drews,                                                                                        
  J.~Fourletova,                                                                                   
  U.~Fricke,                                                                                       
  A.~Geiser,                                                                                       
  F.~Goebel$^{   9}$,                                                                              
  P.~G\"ottlicher$^{  14}$,                                                                        
  O.~Gutsche,                                                                                      
  T.~Haas,                                                                                         
  W.~Hain,                                                                                         
  G.F.~Hartner,                                                                                    
  S.~Hillert,                                                                                      
  B.~Kahle,                                                                                        
  U.~K\"otz,                                                                                       
  H.~Kowalski$^{  15}$,                                                                            
  G.~Kramberger,                                                                                   
  H.~Labes,                                                                                        
  D.~Lelas,                                                                                        
  B.~L\"ohr,                                                                                       
  R.~Mankel,                                                                                       
  I.-A.~Melzer-Pellmann,                                                                           
  M.~Moritz$^{  16}$,                                                                              
  C.N.~Nguyen,                                                                                     
  D.~Notz,                                                                                         
  M.C.~Petrucci$^{  17}$,                                                                          
  A.~Polini,                                                                                       
  A.~Raval,                                                                                        
  \mbox{U.~Schneekloth},                                                                           
  F.~Selonke$^{   3}$,                                                                             
  H.~Wessoleck,                                                                                    
  G.~Wolf,                                                                                         
  C.~Youngman,                                                                                     
  \mbox{W.~Zeuner} \\                                                                              
  {\it Deutsches Elektronen-Synchrotron DESY, Hamburg, Germany}                                    
\par \filbreak                                                                                     
                                                           %                                       
  \mbox{S.~Schlenstedt}\\                                                                          
   {\it DESY Zeuthen, Zeuthen, Germany}                                                            
\par \filbreak                                                                                     
                                                           %                                       
  G.~Barbagli,                                                                                     
  E.~Gallo,                                                                                        
  C.~Genta,                                                                                        
  P.~G.~Pelfer  \\                                                                                 
  {\it University and INFN, Florence, Italy}~$^{e}$                                                
\par \filbreak                                                                                     
                                                           %                                       
                                                           %                                       
  A.~Bamberger,                                                                                    
  A.~Benen,                                                                                        
  N.~Coppola\\                                                                                     
  {\it Fakult\"at f\"ur Physik der Universit\"at Freiburg i.Br.,                                   
           Freiburg i.Br., Germany}~$^{b}$                                                         
\par \filbreak                                                                                     
  M.~Bell,                                          %                                              
  P.J.~Bussey,                                                                                     
  A.T.~Doyle,                                                                                      
  C.~Glasman,                                                                                      
  J.~Hamilton,                                                                                     
  S.~Hanlon,                                                                                       
  S.W.~Lee,                                                                                        
  A.~Lupi,                                                                                         
  D.H.~Saxon,                                                                                      
  I.O.~Skillicorn\\                                                                                
  {\it Department of Physics and Astronomy, University of Glasgow,                                 
           Glasgow, United Kingdom}~$^{m}$                                                         
\par \filbreak                                                                                     
  I.~Gialas\\                                                                                      
  {\it Department of Engineering in Management and Finance, Univ. of                               
            Aegean, Greece}                                                                        
\par \filbreak                                                                                     
  B.~Bodmann,                                                                                      
  T.~Carli,                                                                                        
  U.~Holm,                                                                                         
  K.~Klimek,                                                                                       
  N.~Krumnack,                                                                                     
  E.~Lohrmann,                                                                                     
  M.~Milite,                                                                                       
  H.~Salehi,                                                                                       
  S.~Stonjek$^{  18}$,                                                                             
  K.~Wick,                                                                                         
  A.~Ziegler,                                                                                      
  Ar.~Ziegler\\                                                                                    
  {\it Hamburg University, Institute of Exp. Physics, Hamburg,                                     
           Germany}~$^{b}$                                                                         
\par \filbreak                                                                                     
  C.~Collins-Tooth,                                                                                
  C.~Foudas,                                                                                       
  R.~Gon\c{c}alo$^{   7}$,                                                                         
  K.R.~Long,                                                                                       
  A.D.~Tapper\\                                                                                    
   {\it Imperial College London, High Energy Nuclear Physics Group,                                
           London, United Kingdom}~$^{m}$                                                          
\par \filbreak                                                                                     
                                                           %                                       
                                                           %                                       
  P.~Cloth,                                                                                        
  D.~Filges  \\                                                                                    
  {\it Forschungszentrum J\"ulich, Institut f\"ur Kernphysik,                                      
           J\"ulich, Germany}                                                                      
\par \filbreak                                                                                     
                                                           %                                       
  M.~Kuze,                                                                                         
  K.~Nagano,                                                                                       
  K.~Tokushuku$^{  19}$,                                                                           
  S.~Yamada,                                                                                       
  Y.~Yamazaki \\                                                                                   
  {\it Institute of Particle and Nuclear Studies, KEK,                                             
       Tsukuba, Japan}~$^{f}$                                                                      
\par \filbreak                                                                                     
                                                    %                                              
  A.N. Barakbaev,                                                                                  
  E.G.~Boos,                                                                                       
  N.S.~Pokrovskiy,                                                                                 
  B.O.~Zhautykov \\                                                                                
  {\it Institute of Physics and Technology of Ministry of Education and                            
  Science of Kazakhstan, Almaty, Kazakhstan}                                                       
  \par \filbreak                                                                                   
                                                      %                                            
  H.~Lim,                                                                                          
  D.~Son \\                                                                                        
  {\it Kyungpook National University, Taegu, Korea}~$^{g}$                                         
  \par \filbreak                                                                                   
  K.~Piotrzkowski\\                                                                                
  {\it Institut de Physique Nucl\'{e}aire, Universit\'{e} Catholique de                            
  Louvain, Louvain-la-Neuve, Belgium}                                                              
  \par \filbreak                                                                                   
                                                         %                                         
  F.~Barreiro,                                                                                     
  O.~Gonz\'alez,                                                                                   
  L.~Labarga,                                                                                      
  J.~del~Peso,                                                                                     
  E.~Tassi,                                                                                        
  J.~Terr\'on,                                                                                     
  M.~V\'azquez\\                                                                                   
  {\it Departamento de F\'{\i}sica Te\'orica, Universidad Aut\'onoma                               
  de Madrid, Madrid, Spain}~$^{l}$                                                                 
  \par \filbreak                                                                                   
  M.~Barbi,                                                    %                                   
  F.~Corriveau,                                                                                    
  S.~Gliga,                                                                                        
  J.~Lainesse,                                                                                     
  S.~Padhi,                                                                                        
  D.G.~Stairs\\                                                                                    
  {\it Department of Physics, McGill University,                                                   
           Montr\'eal, Qu\'ebec, Canada H3A 2T8}~$^{a}$                                            
\par \filbreak                                                                                     
                                             %                                                     
  T.~Tsurugai \\                                                                                   
  {\it Meiji Gakuin University, Faculty of General Education, Yokohama, Japan}                     
\par \filbreak                                                                                     
                                                           %                                       
  A.~Antonov,                                                                                      
  P.~Danilov,                                                                                      
  B.A.~Dolgoshein,                                                                                 
  D.~Gladkov,                                                                                      
  V.~Sosnovtsev,                                                                                   
  S.~Suchkov \\                                                                                    
  {\it Moscow Engineering Physics Institute, Moscow, Russia}~$^{j}$                                
\par \filbreak                                                                                     
                                                           %                                       
  R.K.~Dementiev,                                                                                  
  P.F.~Ermolov,                                                                                    
  Yu.A.~Golubkov,                                                                                  
  I.I.~Katkov,                                                                                     
  L.A.~Khein,                                                                                      
  I.A.~Korzhavina,                                                                                 
  V.A.~Kuzmin,                                                                                     
  B.B.~Levchenko$^{  20}$,                                                                         
  O.Yu.~Lukina,                                                                                    
  A.S.~Proskuryakov,                                                                               
  L.M.~Shcheglova,                                                                                 
  N.N.~Vlasov,                                                                                     
  S.A.~Zotkin \\                                                                                   
  {\it Moscow State University, Institute of Nuclear Physics,                                      
           Moscow, Russia}~$^{k}$                                                                  
\par \filbreak                                                                                     
  N.~Coppola,                                                                                      
  S.~Grijpink,                                                                                     
  E.~Koffeman,                                                                                     
  P.~Kooijman,                                                                                     
  E.~Maddox,                                                                                       
  A.~Pellegrino,                                                                                   
  S.~Schagen,                                                                                      
  H.~Tiecke,                                                                                       
  J.J.~Velthuis,                                                                                   
  L.~Wiggers,                                                                                      
  E.~de~Wolf \\                                                                                    
  {\it NIKHEF and University of Amsterdam, Amsterdam, Netherlands}~$^{h}$                          
\par \filbreak                                                                                     
  N.~Br\"ummer,                                                                                    
  B.~Bylsma,                                                                                       
  L.S.~Durkin,                                                                                     
  T.Y.~Ling\\                                                                                      
  {\it Physics Department, Ohio State University,                                                  
           Columbus, Ohio 43210}~$^{n}$                                                            
\par \filbreak                                                                                     
                                                           %                                       
  A.M.~Cooper-Sarkar,                                                                              
  A.~Cottrell,                                                                                     
  R.C.E.~Devenish,                                                                                 
  J.~Ferrando,                                                                                     
  G.~Grzelak,                                                                                      
  S.~Patel,                                                                                        
  M.R.~Sutton,                                                                                     
  R.~Walczak \\                                                                                    
  {\it Department of Physics, University of Oxford,                                                
           Oxford United Kingdom}~$^{m}$                                                           
\par \filbreak                                                                                     
  A.~Bertolin,                                                         %                           
  R.~Brugnera,                                                                                     
  R.~Carlin,                                                                                       
  F.~Dal~Corso,                                                                                    
  S.~Dusini,                                                                                       
  A.~Garfagnini,                                                                                   
  S.~Limentani,                                                                                    
  A.~Longhin,                                                                                      
  A.~Parenti,                                                                                      
  M.~Posocco,                                                                                      
  L.~Stanco,                                                                                       
  M.~Turcato\\                                                                                     
  {\it Dipartimento di Fisica dell' Universit\`a and INFN,                                         
           Padova, Italy}~$^{e}$                                                                   
\par \filbreak                                                                                     
                                                           %                                       
  E.A. Heaphy,                                                                                     
  F.~Metlica,                                                                                      
  B.Y.~Oh,                                                                                         
  J.J.~Whitmore$^{  21}$\\                                                                         
  {\it Department of Physics, Pennsylvania State University,                                       
           University Park, Pennsylvania 16802}~$^{o}$                                             
\par \filbreak                                                                                     
                                                           %                                       
  Y.~Iga \\                                                                                        
{\it Polytechnic University, Sagamihara, Japan}~$^{f}$                                             
\par \filbreak                                                                                     
                                                           %                                       
  G.~D'Agostini,                                                                                   
  G.~Marini,                                                                                       
  A.~Nigro \\		                                                                                    
  {\it Dipartimento di Fisica, Universit\`a 'La Sapienza' and INFN,                                
           Rome, Italy}~$^{e}~$                                                                    
\par \filbreak                                                                                     
                                                           %                                       
  C.~Cormack$^{  22}$,                                                                             
  J.C.~Hart,                                                                                       
  N.A.~McCubbin\\                                                                                  
  {\it Rutherford Appleton Laboratory, Chilton, Didcot, Oxon,                                      
           United Kingdom}~$^{m}$                                                                  
\par \filbreak                                                                                     
%                                                                                                  
    C.~Heusch\\                                                                                    
{\it University of California, Santa Cruz, California 95064}~$^{n}$                                
\par \filbreak                                                                                     
  I.H.~Park\\                                                                                      
  {\it Department of Physics, Ewha Womans University, Seoul, Korea}                                
\par \filbreak                                                                                     
                          %                                                                        
  N.~Pavel \\                                                                                      
  {\it Fachbereich Physik der Universit\"at-Gesamthochschule                                       
           Siegen, Germany}                                                                        
\par \filbreak                                                                                     
                                                           %                                       
  H.~Abramowicz,                                                                                   
  A.~Gabareen,                                                                                     
  S.~Kananov,                                                                                      
  A.~Kreisel,                                                                                      
  A.~Levy\\                                                                                        
  {\it Raymond and Beverly Sackler Faculty of Exact Sciences,                                      
School of Physics, Tel-Aviv University,                                                            
 Tel-Aviv, Israel}~$^{d}$                                                                          
\par \filbreak                                                                                     
                                                           %                                       
  T.~Abe,                                                                                          
  T.~Fusayasu,                                                                                     
  S.~Kagawa,                                                                                       
  T.~Kohno,                                                                                        
  T.~Tawara,                                                                                       
  T.~Yamashita \\                                                                                  
  {\it Department of Physics, University of Tokyo,                                                 
           Tokyo, Japan}~$^{f}$                                                                    
\par \filbreak                                                                                     
                                                           %                                       
  R.~Hamatsu,                                                                                      
  T.~Hirose$^{   3}$,                                                                              
  M.~Inuzuka,                                                                                      
  S.~Kitamura$^{  23}$,                                                                            
  K.~Matsuzawa,                                                                                    
  T.~Nishimura \\                                                                                  
  {\it Tokyo Metropolitan University, Department of Physics,                                       
           Tokyo, Japan}~$^{f}$                                                                    
\par \filbreak                                                                                     
                                                           %                                       
  M.~Arneodo$^{  24}$,                                                                             
  M.I.~Ferrero,                                                                                    
  V.~Monaco,                                                                                       
  M.~Ruspa,                                                                                        
  R.~Sacchi,                                                                                       
  A.~Solano\\                                                                                      
  {\it Universit\`a di Torino, Dipartimento di Fisica Sperimentale                                 
           and INFN, Torino, Italy}~$^{e}$                                                         
\par \filbreak                                                                                     
                                                           %                                       
                                                           %                                       
  T.~Koop,                                                                                         
  G.M.~Levman,                                                                                     
  J.F.~Martin,                                                                                     
  A.~Mirea\\                                                                                       
   {\it Department of Physics, University of Toronto, Toronto, Ontario,                            
Canada M5S 1A7}~$^{a}$                                                                             
\par \filbreak                                                                                     
  J.M.~Butterworth,                                                %                               
  C.~Gwenlan,                                                                                      
  R.~Hall-Wilton,                                                                                  
  T.W.~Jones,                                                                                      
  M.S.~Lightwood,                                                                                  
  B.J.~West \\                                                                                     
  {\it Physics and Astronomy Department, University College London,                                
           London, United Kingdom}~$^{m}$                                                          
\par \filbreak                                                                                     
                                                           %                                       
  J.~Ciborowski$^{  25}$,                                                                          
  R.~Ciesielski$^{  26}$,                                                                          
  R.J.~Nowak,                                                                                      
  J.M.~Pawlak,                                                                                     
  J.~Sztuk$^{  27}$,                                                                               
  T.~Tymieniecka$^{  28}$,                                                                         
  A.~Ukleja$^{  28}$,                                                                              
  J.~Ukleja,                                                                                       
  A.F.~\.Zarnecki \\                                                                               
   {\it Warsaw University, Institute of Experimental Physics,                                      
           Warsaw, Poland}~$^{q}$                                                                  
\par \filbreak                                                                                     
                                                           %                                       
  M.~Adamus,                                                                                       
  P.~Plucinski\\                                                                                   
  {\it Institute for Nuclear Studies, Warsaw, Poland}~$^{q}$                                       
\par \filbreak                                                                                     
                                                           %                                       
  Y.~Eisenberg,                                                                                    
  L.K.~Gladilin$^{  29}$,                                                                          
  D.~Hochman,                                                                                      
  U.~Karshon\\                                                                                     
    {\it Department of Particle Physics, Weizmann Institute, Rehovot,                              
           Israel}~$^{c}$                                                                          
\par \filbreak                                                                                     
                                                           %                                       
  D.~K\c{c}ira,                                                                                    
  S.~Lammers,                                                                                      
  L.~Li,                                                                                           
  D.D.~Reeder,                                                                                     
  A.A.~Savin,                                                                                      
  W.H.~Smith\\                                                                                     
  {\it Department of Physics, University of Wisconsin, Madison,                                    
Wisconsin 53706}~$^{n}$                                                                            
\par \filbreak                                                                                     
                                                           %                                       
  A.~Deshpande,                                                                                    
  S.~Dhawan,                                                                                       
  V.W.~Hughes,                                                                                     
  P.B.~Straub \\                                                                                   
  {\it Department of Physics, Yale University, New Haven, Connecticut                              
06520-8121}~$^{n}$                                                                                 
 \par \filbreak                                                                                    
                                                           %                                       
  S.~Bhadra,                                                                                       
  C.D.~Catterall,                                                                                  
  S.~Fourletov,                                                                                    
  G.~Hartner,                                                                                      
  S.~Menary,                                                                                       
  M.~Soares,                                                                                       
  J.~Standage\\                                                                                    
  {\it Department of Physics, York University, Ontario, Canada M3J                                 
1P3}~$^{a}$                                                                                        
                                                           %                                       
\newpage                                                                                           
                                                           %                                       
$^{\    1}$ also affiliated with University College London \\                                      
$^{\    2}$ on leave of absence at University of                                                   
Erlangen-N\"urnberg, Germany\\                                                                     
$^{\    3}$ retired \\                                                                             
$^{\    4}$ now at Sparkasse Koeln \\                                                              
$^{\    5}$ self-employed \\                                                                       
$^{\    6}$ PPARC Advanced fellow \\                                                               
$^{\    7}$ supported by the Portuguese Foundation for Science and                                 
Technology (FCT)\\                                                                                 
$^{\    8}$ now at Dongshin University, Naju, Korea \\                                             
$^{\    9}$ now at Max-Planck-Institut f\"ur Physik,                                               
M\"unchen/Germany\\                                                                                
$^{  10}$ partly supported by the Israel Science Foundation and                                    
the Israel Ministry of Science\\                                                                   
$^{  11}$ supported by the Polish State Committee for Scientific                                   
Research, grant no. 2 P03B 09322\\                                                                 
$^{  12}$ member of Dept. of Computer Science \\                                                   
$^{  13}$ now at Fermilab, Batavia/IL, USA \\                                                      
$^{  14}$ now at DESY group FEB \\                                                                 
$^{  15}$ on leave of absence at Columbia Univ., Nevis Labs.,                                      
N.Y./USA\\                                                                                         
$^{  16}$ now at CERN \\                                                                           
$^{  17}$ now at INFN Perugia, Perugia, Italy \\                                                   
$^{  18}$ now at Univ. of Oxford, Oxford/UK \\                                                     
$^{  19}$ also at University of Tokyo \\                                                           
$^{  20}$ partly supported by the Russian Foundation for Basic                                     
Research, grant 02-02-81023\\                                                                      
$^{  21}$ on leave of absence at The National Science Foundation,                                  
Arlington, VA/USA\\                                                                                
$^{  22}$ now at Univ. of London, Queen Mary College, London, UK \\                                
$^{  23}$ present address: Tokyo Metropolitan University of                                        
Health Sciences, Tokyo 116-8551, Japan\\                                                           
$^{  24}$ also at Universit\`a del Piemonte Orientale, Novara, Italy \\                            
$^{  25}$ also at \L\'{o}d\'{z} University, Poland \\                                              
$^{  26}$ supported by the Polish State Committee for                                              
Scientific Research, grant no. 2 P03B 07222\\                                                      
$^{  27}$ \L\'{o}d\'{z} University, Poland \\                                                      
$^{  28}$ supported by German Federal Ministry for Education and                                   
Research (BMBF), POL 01/043\\                                                                      
$^{  29}$ on leave from MSU, partly supported by                                                   
University of Wisconsin via the U.S.-Israel BSF\\                                                  
                                                           %                                       
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% \par         % if index listing & table fit to 1 page, put gap here                              
\newpage   % alternatively: go to newpage, if page is too small                                    
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\begin{tabular}[h]{rp{14cm}}                                                                       
                                                           %                                       
$^{a}$ &  supported by the Natural Sciences and Engineering Research                               
          Council of Canada (NSERC) \\                                                             
$^{b}$ &  supported by the German Federal Ministry for Education and                               
          Research (BMBF), under contract numbers HZ1GUA 2, HZ1GUB 0, HZ1PDA 5, HZ1VFA 5\\         
$^{c}$ &  supported by the MINERVA Gesellschaft f\"ur Forschung GmbH, the                          
          Israel Science Foundation, the U.S.-Israel Binational Science                            
          Foundation and the Benozyio Center                                                       
          for High Energy Physics\\                                                                
$^{d}$ &  supported by the German-Israeli Foundation and the Israel Science                        
          Foundation\\                                                                             
$^{e}$ &  supported by the Italian National Institute for Nuclear Physics (INFN) \\                
$^{f}$ &  supported by the Japanese Ministry of Education, Science and                             
          Culture (the Monbusho) and its grants for Scientific Research\\                          
$^{g}$ &  supported by the Korean Ministry of Education and Korea Science                          
          and Engineering Foundation\\                                                             
$^{h}$ &  supported by the Netherlands Foundation for Research on Matter (FOM)\\                   
$^{i}$ &  supported by the Polish State Committee for Scientific Research,                         
          grant no. 620/E-77/SPUB-M/DESY/P-03/DZ 247/2000-2002\\                                   
$^{j}$ &  partially supported by the German Federal Ministry for Education                         
          and Research (BMBF)\\                                                                    
$^{k}$ &  supported by the Fund for Fundamental Research of Russian Ministry                       
          for Science and Edu\-cation and by the German Federal Ministry for                       
          Education and Research (BMBF)\\                                                          
$^{l}$ &  supported by the Spanish Ministry of Education and Science                               
          through funds provided by CICYT\\                                                        
$^{m}$ &  supported by the Particle Physics and Astronomy Research Council, UK\\                   
$^{n}$ &  supported by the US Department of Energy\\                                               
$^{o}$ &  supported by the US National Science Foundation\\                                        
$^{p}$ &  supported by the Polish State Committee for Scientific Research,                         
          grant no. 112/E-356/SPUB-M/DESY/P-03/DZ 301/2000-2002, 2 P03B 13922\\                    
$^{q}$ &  supported by the Polish State Committee for Scientific Research,                         
          grant no. 115/E-343/SPUB-M/DESY/P-03/DZ 121/2001-2002, 2 P03B 07022\\                    
                                                       %                                           
\end{tabular}                                                                                      
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%%\end{document}                                                                                     

%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
%%\include{resonance-txt}
\clearpage
\pagenumbering{arabic} 
\pagestyle{plain}

%******************************************************************

%                   INTRODUCTION

%******************************************************************

\section{Introduction}

Many extensions of the Standard Model (SM)
predict the existence of
particles carrying both baryon and lepton numbers, such as
leptoquarks (LQs) \cite{pl:b191:442} or squarks 
(in $R$-parity-violating
($\rpviolate$) supersymmetry)~\cite{np:b397:3}.
In $ep$ collisions at HERA, 
such states may be produced directly through
electron\footnote{Unless otherwise specified,
`electron' refers to both positron and electron
and `neutrino' refers to both neutrino and antineutrino.}-quark
fusion, 
with subsequent decay into  
electron and quark or neutrino and quark,
yielding peaks in the spectra of
the final-state lepton-jet invariant mass, $M_{lj}$.
This paper presents a search for such resonant states.


The only significant backgrounds
to high-mass resonance production
arise from neutral current (NC) 
and charged current (CC) deep inelastic scattering (DIS), 
as illustrated in Figs.~\ref{lq_feynman}a and b.
While a resonance with mass below 
the HERA center-of-mass energy, 
$\sqrt{s}$,
would give rise to narrow peak in the
$M_{lj}$ spectrum, the backgrounds from NC and CC
fall rapidly at high mass due to 
the dependence of the cross section on $Q^2$,
the virtuality of the exchanged bosons,
and to the
sharply falling valence-quark density at large Bjorken $x$.
The variable $\theta^*$,
the lepton scattering 
angle in the lepton-jet center-of-mass frame,
can be used to reduce
the DIS backgrounds.  The decay of a resonance
results in an angular  
distribution different from those
produced by SM processes: 
a scalar resonance, for example, will have a
flat distribution in $\cos \theta^*$, while NC DIS events
follow approximately a $1/(1-\cos\theta^*)^2$ distribution.


The data were used to investigate the production of resonances. 
%as well as LQs of the
%Buchm$\ddot{\rm{u}}$ller-R$\ddot{\rm{u}}$ckl-Wyler (BRW) 
%model\cite{pl:b191:442}.
In the absence of a narrow resonance signal, limits can
be set on the production of resonances with
masses below $\sqrt{s}$ and with the assumption
of narrow width, as shown in Fig.~\ref{lq_feynman}c.
In addition, specific limits
on the production of 
Buchm$\ddot{\rm{u}}$ller-R$\ddot{\rm{u}}$ckl-Wyler (BRW) LQs
\cite{pl:b191:442}
with masses both below and above 
$\sqrt{s}$ can be obtained.  
Because backgrounds fall sharply at large $M_{lj}$, 
the data are sensitive to LQs via 
exchange terms, shown in Fig.~\ref{lq_feynman}d,
as well as interference terms with SM processes.
%besides
%the $s$-channel terms) even for resonances
%with masses beyond $\sqrt{s}$.  
The narrow-width assumption is not necessary for setting 
limits in the BRW model.


The present results supersede previous analyses
\cite{epj:c16:253,pr:d63:052002}. They are based on all
data collected by the ZEUS experiment in the period from 1994
to 2000.  After 1998, the HERA center-of-mass energy was increased from
300 to 318~$\gev$.


\section{Experimental conditions}


The ZEUS detector is described in detail elsewhere
\cite{zeus:1993:bluebook}. 
The main components used in the present analysis are the central
tracking detector (CTD)
and the uranium-scintillator sampling calorimeter (CAL). 
%The performance parameters relevant for this study have been discussed
%in previous publications~\cite{epj:c16:253,pr:d63:052002}.


%%----------------------------------
%% \Zctddesc replaced by original words
%%----------------------------------
Charged particles are tracked in the CTD~\citeCTD,
which operates in a magnetic field of $1.43\Tesla$ provided by a thin
superconducting solenoid. The CTD consists of 72~cylindrical drift chamber
layers, organized in nine superlayers covering the polar-angle region
{$15^\circ<\theta<164^\circ$}. The transverse-momentum resolution for
full-length tracks is 
$\sigma(p_T)/p_T=0.0058p_T\oplus0.0065\oplus0.0014/p_T$,
with $p_T$ in $\Gev$.


%%----------------------------------
%\Zcaldesc replaced by orginial word for modifications
%%-----------------------------------
The CAL~\citeCAL consists 
of three parts: the forward\footnote{The 
ZEUS coordinate system is a right-handed Cartesian system,
with the $Z$ 
axis pointing in the proton beam direction,
referred to as the ``forward direction'',
and the $X$ axis 
pointing left towards the center 
of HERA. The coordinate origin is at the nominal interaction point.
%The pseudorapidity is defined as $\eta=-$ln$(\tan{{\theta}\over{2}})$,
%where the polar angle, $\theta$,
%is measured with respect to the proton beam direction.
}
(FCAL), the barrel (BCAL) 
and the rear (RCAL)
calorimeters. Each part is divided into modules, which
are subdivided transversely into towers and
longitudinally into one electromagnetic section (EMC) and 
either one (in RCAL)
or two (in BCAL and FCAL) hadronic sections (HAC). 
The smallest subdivision of
the calorimeter is called a cell.  The CAL energy resolutions, 
as measured under
test-beam conditions, are $\sigma(E)/E=0.18/\sqrt{E}$ 
for electrons and
$\sigma(E)/E=0.35/\sqrt{E}$ for hadrons, with $E$ in $\Gev$.
The timing resolution of the CAL is better than 1 ns for energy
deposits greater than 4.5 $\gev$.
Further performance parameters of the CAL
relevant for this study have been discussed
in previous publications~\cite{epj:c16:253,pr:d63:052002}.


The forward
plug calorimeter (FPC), a lead-scintillator
sandwich calorimeter, was installed in the 20 $\times$ 20 cm$^2$
beam hole of the forward CAL (FCAL) of the ZEUS detector in 1998.
Although the FPC information was not used in this analysis,
the impact of its material on the CAL response to forward jets was
extensively studied.
%Monte Carlo simulation
%shows that the effect of the FPC material on the event information
%used in this study is negligible.


The luminosity, which was measured~\citeLumi
from the rate of the bremsstrahlung
process $ep \rightarrow ep \gamma$,
has an uncertainty of 1.6\% to 2.25\%, depending
on the running periods.
All ZEUS data
collected from 1994 to 2000 are listed in
Table \ref{tab:lumi}, and were used for this analysis.
%The luminosities of the data 
%used in $eq\to \nu q$ channel are slightly different
%from those used in $eq\to eq$ channel.

\section{Monte Carlo simulation}
\label{mc_simulation}

Production and decay of resonances 
were simulated using PYTHIA 6.1~\cite{cpc:135:238,pythia_lq61_hera},
which takes into account the finite width of
the resonant state, but includes only the $s$-channel diagrams. 
Initial-
and final-state QCD radiation from the quark and the effect of LQ 
hadronization~\cite{pythia_lq61_hera} 
before decay as well as the initial-state
QED radiation from the electron are also taken into account.


Standard Model NC and CC DIS events were simulated using the 
HERACLES 4.6.2~\cite{cpc:69:155} program 
with the DJANGO 6 version 2.4~\cite{cpc:81:381}
and DJANGOH 1.1~\cite{spi:www:djangoh11}
interfaces to the hadronization programs.
Radiative corrections for initial- and final-state 
electroweak radiations, vertex and propagator corrections,
and two-boson exchange were included.
The hadronic final state was simulated using the MEPS model in LEPTO 
6.5~\cite{cpc:101:108}, which includes $O$($\alpha_S$) matrix elements
and higher-order QCD radiation.
The CTEQ5D parton distribution function (PDF)~\cite{pr:d55:1280} 
was used in evaluating the SM cross sections.


The largest uncertainty in the 
NC and CC cross sections is due to the uncertainties in
the parton densities of the proton. The PDFs
at high Bjorken $x$ are determined primarily 
from measurements made in fixed-target DIS 
experiments.  At $x=0.6$, corresponding to a 
lepton-jet mass of $230\gev$, 
the cross-section uncertainty due to the 
PDF uncertainty~\cite{epj:c14:285}
is $\approx6\%$ for NC and $\approx4$ (10)\%
for $e^-u$ ($e^+d$) CC reactions,
where $u$ and $d$ refer to the $u$ and $d$ 
valence quarks, respectively.



The generated events were passed through
the GEANT 3.13-based \cite{tech:cern-dd-ee-84-1}
ZEUS detector- and trigger-simulation programs
~\cite{zeus:1993:bluebook}.
They were reconstructed and analysed by the same program
chain as the data.


\section{Resonance search}


Events from a hypothetical
resonance decaying
into $eq$ ($\nu$$q$) have a
topology identical to DIS $\NC$ ($\CC$) events.
Events originating from 
high-mass resonances are expected to have 
high transverse energy, at
least one jet, and either an identified final-state electron
or large missing transverse energy.
The lepton-jet invariant mass was calculated as
\begin{equation}
\notag
M_{lj} = \sqrt{2E_lE_j(1-\cos\xi)} ,
\end{equation}
where $E_l$ is the energy of the outgoing lepton, 
$E_j$ is
the energy of the jet, and $\xi$ is the angle
between the lepton and jet.
In final states containing multiple jets,
the jet with the largest transverse momentum, $P_{T}^j$, was used.

\subsection{$ep \to eX$ topology}
\label{nc_measurement}

\subsubsection{Event selection}
\label{sec:event_select_nc}

Events with the topology $ep \to eX$, where
$X$ contains one or more jets,
were selected using the following criteria:


\begin{itemize}
\item the $Z$ coordinate
of the reconstructed event 
vertex was required to be in the
range $|Z|<50$~cm, consistent with an $ep$ collision;

\item  the total transverse energy, $E_{T}$, was
required to be at least $60\gev$. This removes the bulk of the SM NC
background;

\item  an identified electron
\cite{zfp:c74:207} was required
with energy $E_{e}^{\prime }>25$~GeV located
either in FCAL or BCAL, 
corresponding to an electron polar angle,
$\theta_e < 126^{\circ}$. 
Electrons impacting the BCAL within $1.5$~cm of a module
edge, as well as electrons impacting between the FCAL and the BCAL,
as determined by 
tracking information, were discarded to ensure
that the resolutions were well understood;

\item  at least one hadronic jet with transverse momentum 
$P^{j}_{T}>15\gev$, obtained
using the longitudinally invariant
$k_T$ cluster algorithm~\cite{np:b406:187} in
inclusive mode~\cite{pr:d48:3160}, was required.
The centroid at the FCAL face of the highest-$P_T$ jet
was required to be outside a box of
$60\times 60$~cm$^2$ centered on the proton beam,
in order to ensure good energy containment and to reduce
the systematic uncertainties due to the proton remnant.


\end{itemize}

The acceptance,
mass shifts, and resolutions for resonant lepton-quark states 
were calculated from the LQ MC.
After these cuts, the acceptance for scalar resonances was 
$\sim$60\%, depending weakly on the mass.
The acceptance for vector resonances was $\sim$60\% below
200~$\gev$, decreasing to $\sim$40\% at 290~$\gev$.
These differences in the acceptances for scalar and
vector resonances are
due to the different decay angular distributions.
The mass resolution,
determined from a Gaussian fit to the peak of the reconstructed mass
spectrum, fell from 6\% to 4\% as the resonant mass increased
from 150 to $290\gev$. The peak position 
was typically lower than the generated mass by 1\%.
The resolution
in $\cos \theta ^{\ast }$ near $|\cos \theta ^{\ast }|=1$ had 
a Gaussian width 
of $0.01$, degrading to $0.03$ with decreasing
$|\cos \theta ^{\ast }|$.


\subsubsection{Search results}


After the above selection, 21\,509 events were found, 
compared to 21\,445 $\pm$ 1\,288
expected from the $\NC$ MC simulation
and the evaluation of its systematic uncertainties
(see Section~\ref{sec:nc_systematic}).
The measured distributions of the total
transverse energy, $E_{T}$, are compared to the
simulation in Figs.~\ref{nc_control}a and \ref{nc_control}e,
where the $e^+p$ and $e^-p$ samples are shown separately.
Also shown
are $E-P_Z$ (Figs.~\ref{nc_control}b,f), 
where the $E$ and $P_Z$ are summed over the
final-state electron and all the hadrons,
electron transverse momentum
($P_{T}^{e}$) (Figs.~\ref{nc_control}c,g) and
jet transverse momentum ($P_{T}^{j}$)
(Figs.~\ref{nc_control}d,h).
Good agreement is seen between the
data and the SM NC simulation for all of these spectra.


Figures \ref{nc_mass_posi} and \ref{nc_mass_elec}
show the 
$M_{ej}$ spectra for $e^+p$ and $e^-p$ data, respectively.
%Figures \ref{nc_mass_posi}a) and \ref{nc_mass_elec}a) 
The upper plots
show the spectra with and without the cut
$\cos\theta^*<0.4$, 
while the lower plots show the ratio
of the observed spectrum to SM expectations with no $\cos\theta^*$
cut.  The data are well described by the NC MC.


An excess of data events relative to SM expectations
was seen in data from the 1994-97 period~\cite{epj:c16:253}.
For $M_{ej}>210\gev$,
24.7 events were expected and 49 were observed.
No such excess is seen in the more recent data.
The increase in the proton beam energy from 820 
to 920 $\gev$ in 1998 had no
significant effect on the mass reconstruction
or the signal acceptance.
The effect of the addition of the FPC was 
studied extensively;
uncertainties in its simulation were found
not to affect the conclusions of the present analysis.
Combining all the $e^+p$ data, 
104 events were observed  with $M_{ej}>210\gev$,
in good agreement
with the SM expectation of 90 $\pm 15$.  
The systematic uncertainty on the expectation
is discussed in the next section. 
The excess seen in the earlier data sample 
must be ascribed to
%is ascribed to
a statistical fluctuation.


\subsubsection{Systematic uncertainties}
\label{sec:nc_systematic}

The uncertainty
on the expected number of events from NC DIS process
was investigated.
The dominant sources were uncertainties in:

\begin{itemize}
\item calorimeter energy scale, of
1\% for BCAL electrons, 2\% for FCAL electrons 
and 2\% for hadrons.
This led to an uncertainty of
$4~(12)$\% in the NC expectation for $M_{ej}$=100 (220)$\gev$;

\item the simulation of the hadronic energy flow
including simulation of the proton remnant and the energy flow
between the struck quark and proton remnant.
Tests based on the SM MC samples
%The SM MC samples implied
yielded 
variations of the NC background of about
10\% for masses above 220 $\gev$;

\item the energy reponse
of FCAL towers closest to the beam
from the differences observed between data and simulation.
%The SM MC samples implied variations
%of the NC background of less than 5~\% for $M_{ej}$=220 $\gev$;
Tests based on the SM MC samples showed variations
of the NC background of less than 5\% for $M_{ej}$=220 $\gev$;

\item the parton densities, as
estimated by Botje \cite{epj:c14:285}, which gave an uncertainty of 5\%
for $M_{ej}$=220 $\gev$.

%\item Lack of knowledge of the energy resolution functions 
%allow a variation of $<5$~\% in $N^{pred}$.

\end{itemize}


%Other uncertainties include the simulation of the
%electron-energy resolution,
%the electron-finding efficiency,
%the jet-position reconstruction,
%the luminosity determination and the simulation
%of the vertex distribution.
%These were
%small in comparison to the above items.
Other uncertainties were investigated
and found to be small compared to the above items.
They are the simulation of the
electron-energy resolution,
the electron-finding efficiency,
the jet-position reconstruction,
the luminosity determination and the simulation
of the vertex distribution.
The overall systematic uncertainties 
on the background expectations result from
summing the contributions from all these sources in quadrature and are
shown in Figs.~\ref{nc_mass_posi}b and \ref{nc_mass_elec}b
as the shaded bands.

\subsubsection{Significance analysis}

To quantify the level of agreement of the
$M_{ej}$ spectra between the SM MC and the data,
a significance analysis was performed
using a sliding mass window of
width 3$\sigma(M_{ej})$, where $\sigma(M_{ej})$ is the mass
resolution discussed in Section \ref{sec:event_select_nc}.  
The number of events, $\mu$, expected from
the SM and the number of observed events, $N$,
were compared in each window, and the
probability of observing $N$ or more events
while expecting $\mu$ was calculated as 
\begin{equation}
P=\sum_{k=N}^{\infty}e^{-\mu}
              \frac{{\mu}^k}{k!}.
\label{poisson_more}
\end{equation}
In the $e^+p$ data sample,
a minimum probability, $P_{min}$,
of 2.6$\times$10$^{-3}$ was found at mass 121~$\gev$, where
2\,575 events were observed while 2\,436 were expected
inside the sliding window.
A large number of MC experiments were then performed, taking into
account the systematic uncertainties on the SM expectations,
and the $P_{min}$ distribution was determined.
In 35\% of all simulated experiments, the value of
$P_{min}$ obtained was less than that found in the data. 
With the additional cut $\cos\theta^*<0.4$
applied to the sample, 
a $P_{min}$ of
1.9$\times$10$^{-2}$ was found in the $e^+p$ data sample at a
mass of 158~$\gev$.  A value of $P_{min}$
less than that found in the data was observed in 
41\% of the generated experiments.
The same test was also done on the $e^-p$ data samples.
The results are summarized in Table~\ref{tab:many_experiment_nc}.
These observations show that the data are 
compatible with the SM expectation, and there is no evidence for
a narrow resonance in the $eq$ channel.


\subsection{$ep \to \nu X$ topology}
\label{cc_measurement}


\subsubsection{Event selection}
Events with the topology $ep \to \nu X$,
where $X$ contains one or more jets, 
were selected by the following cuts,
similar to those used in the CC cross-section measurement
\citezeusccpaper:

\begin{itemize}

\item the $Z$ coordinate of the reconstructed event 
vertex was required to be in the range $|Z|<50$~cm.
The event vertex was reconstructed either using
the tracks measured in the CTD (for events with large
$\gamma_0$~\citezeusccpaper, 
the hadronic scattering angle of the system
relative to the nominal interaction point)
or from the arrival time of the particles entering the FCAL
(for events with small $\gamma_0$, i.e. outside
the CTD acceptance);
%The events were classified according to $\gamma_0$,
%the hadronic scattering angle of the system relative
%to the nominal interaction point~\citezeusccpaper.
%If $\gamma_0$ is sufficiently large, i.e. in the
%central region, tracks in the CTD
%were used to reconstruct the event vertex.
%On the other hand, if $\gamma_0$ was small,
%i.e. in the forward region, the
%hadronic final state of such events was often outside the CTD
%acceptance, and thus the vertex position was obtained
%from the arrival time of particles entering
%the FCAL.

\item the missing transverse momentum,
$\ptmiss >20\gev$, as measured in the calorimeter;

\item $y<0.9$, where $y$
was calculated from the longitudinal momentum measured 
in the calorimeter: $y=(E-P_Z)/2E_e$, where
$E_e$=27.5$\gev$ is the electron beam energy.
This cut discards events in which the 
kinematic variables were poorly reconstructed;

\item NC events were removed by discarding events with identified
electrons;

\item at least one jet was required with 
$P_{T}^j>10\gev$, where jets were reconstructed 
as in the $ep \to eX$ topology, and 
the centroid at the FCAL face of the highest-$P_T$ jet
was required to be outside a box of
$60\times 60$~cm$^2$ centered on the proton beam.

\end{itemize}


The neutrino energy and angle were calculated 
by assuming that $\ptmiss$ and missing $E-P_Z$
were carried away by a single neutrino.
Monte Carlo simulations of resonant-state production 
indicated that the
neutrino energy, $E_{\nu}$, and polar angle, $\theta_{\nu}$,
were measured with average
resolutions of $16\%$ and $11\%$, respectively. The average systematic 
shift in $E_{\nu}$ was less than $2\%$,  while the shift in 
$\theta_{\nu}$ was less than $1\%$.
After all these cuts, the acceptance was $\sim$ 60\%,
depending weakly on the mass.


The invariant mass of the $\nu$-jet system,~$M_{\nu j}$,
was reconstructed using the sum of the
4-momenta of the 
neutrino and the highest-$P_T$ jet in the event.
%The jet direction was determined from the vector formed by the event
%vertex and the jet centroid in the calorimeter. 
The shift and resolution of the invariant mass
were studied by reconstructing it
for the LQ MC events and
fitting the mass peak with a Gaussian function.
The resulting mass shift was below
1\% for LQ masses between
150 and $290\gev$, with the resolution varying from 8\% to 7\%.


\subsubsection{Search results}


After the selection, 2\,536 events were found, compared to 2\,587
$\pm$ 217
expected from the $\CC$ MC simulation
and the evaluation of its systematic uncertainties
(see Section~\ref{sec:cc_systematic}). 
The distributions of $\ptmiss$
are compared for data and
simulation in Figs.~\ref{cc_control}a and \ref{cc_control}e,
where the $e^+p$ and $e^-p$ samples are shown separately.
Also shown
are $E-P_Z$ (Figs.~\ref{cc_control}b,f), 
where the $E$ and $P_Z$ are summed over the
final-state hadrons,
$E_{\nu}$ (Figs.~\ref{cc_control}c,g) and
$P_{T}^{j}$ (Figs.~\ref{cc_control}d,h).
Reasonable agreement is seen between the
data and the SM CC simulation for all of these spectra.
A small excess compared to MC is observed
for the $e^+p$ data at large $\ptmiss$
(also reflected in the $P_T^j$ and $E_{\nu}$ distributions).
%A small excess of data in comparison to MC
%at large $\ptmiss$ and $P_{T}^j$ is observed for the $e^+p$ data.


Figures \ref{cc_mass_posi} and \ref{cc_mass_elec}
show the 
$M_{\nu j}$ spectra for $e^+p$ and $e^-p$ data, respectively.
The upper plots show the spectra with and without a cut of
$\cos\theta^*<0.4$, while the lower plots show the ratio
of the observed spectra to SM expectations with no $\cos\theta^*$ 
cut. The data are reasonably well described by the CC MC.


\subsubsection{Systematic uncertainties}
\label{sec:cc_systematic}

The uncertainty on the predicted background from SM CC DIS processes
was investigated. The dominant sources of uncertainty, which
are similar to those described in Section \ref{sec:nc_systematic}
for the $ep \to eX$ case,
arise from uncertainties in:
\begin{itemize}
\item the hadronic energy scale, of 2\%, which leads to an uncertainty
of 2 (10)\% for $M_{\nu j}$=100 (220) $\gev$;

\item the simulation of 
the energy deposited in the FCAL regions
closest to the forward beam pipe, which
leads to an uncertainty of $\sim$ 7\% for $M_{\nu j}$=220 $\gev$;

\item the parton densities, as estimated by Botje
\cite{epj:c14:285}, giving 9\% and 4\% uncertainties for
$e^+p$ and $e^-p$, respectively,
for $M_{\nu j}$=220 $\gev$.
The PDF uncertainties were also estimated using 
the ZEUS NLO fit \cite{zeus_nlo_fit} with similar results.
\end{itemize}
Other uncertainties include jet-position reconstruction
and luminosity determination, which were small compared to those given above.
The overall systematic uncertainties 
on the background expectations were obtained by
summing the contributions from all these sources in quadrature,
and are shown in Figs.~\ref{cc_mass_posi}b and \ref{cc_mass_elec}b
as the shaded bands.


%The overall uncertainties were calculated by
%summing the uncertainties coming 
%from all the sources in quadrature. The
%uncertainties at $M_{\nu j}$=200 $\gev$ are
%20\% in $e^+p$ and 11\% in $e^-p$ samples, and
%at 280 $\gev$ increase to 60\% in $e^+p$ and 35\% in $e^-p$ samples.


\subsubsection{Significance analysis}


The same significance analysis as applied to the $M_{ej}$ spectra
was performed on the $M_{\nu j}$ spectra. The results are
summarized in Table \ref{tab:many_experiment_cc}.
The observations are again
compatible with the SM expectation, and there is no evidence for
a narrow resonance in the $\nu q$ channel.


\section{Limits on the production of resonant states}


Since no evidence was found for a narrow resonance in the
lepton-jet mass spectra, limits were set on the Yukawa coupling
$\lambda$ and the production cross section
of the eight types of resonant states listed in Table
\ref{tab_resst} with masses below $\sqrt{s}$.
The resonance decay width was assumed to be small,
and the $s$-channel production was assumed to be
dominant, so that the resonance exchange and 
interference contributions were neglected.

The limits were set using a likelihood technique
involving the observables
 $M_{ljs}$ and  $\cos\theta^*$.  
The variable $M_{ljs}$ is
the invariant mass of the lepton-jets system and was calculated from:
\begin{equation}
\notag
M_{ljs}   =  \sqrt{2E_e{(E+P_Z)}_{ljs}} ~~,
\end{equation}
where $E_e=27.5\gev$ is the electron beam energy,
${(E+P_Z)}_{ljs}$ was determined
using the lepton and all jets in the event
satisfying $P_T^j>15\gev$ ($P_T^j>10\gev$ in $ep \to \nu X$
channel) and $\eta_j<3$
\cite{epj:c16:253,pr:d63:052002}. 

The $M_{ljs}$ method rather than the $M_{lj}$ method
was used in the limit setting because it has better resolution
on the
reconstructed resonance mass for $LQ \to eq$ events.
Using the PYTHIA MC described in Section
\ref{mc_simulation}, it was found that 
the resolution on $M_{ljs}$ 
for the $LQ \to eq$ events varied
from 3\% to 2\% as the mass varied from 150 to 290 GeV, while
that on $M_{lj}$ varied from 6\% to 4\%.
For the $LQ \to \nu q$ events, $M_{ljs}$ and $M_{lj}$ have similar 
resolutions.
On the other hand, the $M_{ljs}$ method assumes that
the final state consists only of the LQ decay products
and the proton remnant.  It is also affected by the
QED initial-state radiation (ISR) of a photon
from the incoming electron.
Therefore, the $M_{lj}$ method is more general and
better suited for a resonance search.
This is discussed in more detail elsewhere
\cite{epj:c16:253,pr:d63:052002}. 

%The reason that the $M_{lj}$ method was used for the general resonance
%search while the $M_{ljs}$ method was used for limit setting has
%been discussed previously \cite{epj:c16:253,pr:d63:052002}. 
%The $M_{ljs}$ method is not applicable
%to the scenario $eq \to LQ+X$ and is affected
%by QED initial-state radiation (ISR) of a photon from
%the incoming electron.
%On the other hand, $M_{ljs}$ has better resolution on the
%reconstructed resonance mass for $LQ \to eq$ events.
%Using the PYTHIA MC described in Section
%\ref{mc_simulation}, it was found that 
%for $LQ \to eq$ events the resolution on $M_{ljs}$ varies
%from 3\% to 2\% within the mass range 150 to 290 GeV, while
%that on $M_{lj}$ varies from 6\% to 4\%.
%For the $LQ \to \nu q$ events, $M_{ljs}$ and $M_{lj}$ have similar 
%resolutions.
In the limit-setting procedure, the width was 
assumed to be small compared to the detector resolution, so that
the narrow-width approximation (NWA) is valid.
In the NWA, the total cross section of
the production of a single state
is described at Born level\cite{pl:b191:442} by
\begin{equation}
\sigma^{NWA}=(J+1)\frac{\pi}{4s}\lambda^{2}q(x_{0}, M_{eq}^2) ,
\label{eqn_nwidth}
\end{equation}
where $q(x_{0}, M_{eq}^2)$ is the initial-state quark (or antiquark) 
momentum density in the proton
evaluated at $x_{0}=M_{eq}^{2}/s$ and virtuality 
scale $M_{eq}^2$,
and $J$ is the spin of the state. 

The effect of QED ISR on the resonance production cross section
was evaluated. It varies from
$-$4\% at resonance mass 100 $\gev$ to
$-$25\% at mass 300 $\gev$ and depends weakly on the
resonance type.
This was taken into account when setting the limits on $\lambda$.
The next-to-leading-order (NLO) QCD corrections,
the so-called $K$-factors,
including the vertex loop corrections,
gluon radiation from the leptoquark or the quark
and other higher-order diagrams, have been evaluated
for the scalar resonances 
%\cite{hep-ph-9703433}.
\cite{zfp:c74:611,zfp:c75:453}.
The $K$-factor varied from 1.17 (1.17) to 1.15 (1.35)
for an $eu$ ($ed$) resonance with mass varying from 100 to 300 $\gev$.
However,
no calculation is available for the vector resonances,
so for consistency,
no NLO QCD correction was applied to either scalar or vector
resonance.

%The data were divided into three samples
%according to the three different
%running periods, listed in Table
%\ref{tab:lumi}.
For each of the running periods listed in Table \ref{tab:lumi},
the $M_{ljs}$-$\cos\theta^*$ plane for
150 $<M_{ljs}<$ 320 $\gev$
was divided into bins, labelled $i$, 
for each of the $eq$ and $\nu q$ data 
samples.
For resonant states with $\nu q$ decays,
both $eq \to eX$ and $eq \to \nu X$ samples were used,
while for resonant states decaying only to $eq$,
only $eq \to eX$ samples were used.
The upper limit on the coupling strength,
$\lambda_{\rm limit}$,
as a function of $M_{eq}$, was obtained by solving
\footnote{With the Bayesian prior assumption of a 
uniform $\lambda^2$ distribution.}
\begin{equation}
\int_0^{\lambda_{\rm limit}^2}d\lambda^2
L(M_{eq},\lambda) = 
0.95 \int_0^{\infty}d\lambda^2
L(M_{eq}, \lambda),
\notag
\end{equation}
where 
%$i$ refers to any given $\cos \theta^*$-$M_{ljs}$ bin and
$L$ is the product of
Poisson probabilities of all $\cos \theta^*$-$M_{ljs}$ bins 
convoluted with Gaussian distributions
for the main systematic uncertainties. The $L$ was calculated as
\begin{equation}
 L = \int_{-\infty}^{\infty} \prod_j d\delta_j 
   \frac{1}{\sqrt{2\pi}} e^{(-\delta_j^2/2)}
   \prod_i  e^{(-\mu'_i)} \frac{{\mu'_i}^{N_i}}{N_i!},
\notag
\end{equation}
   where $j$ denotes the source of systematic uncertainty and
$\delta_j$ corresponds to the variation of the
$j^{\rm th}$ systematic parameter in units of the nominal values
quoted in Sections \ref{sec:nc_systematic} and \ref{sec:cc_systematic}.
The index $i$ labels the bin in $\cos\theta^*$-$M_{ljs}$ and
$N_i$ gives the number of events observed in that bin.
The variable $\mu'_i$, which
denotes the expected number of events in bin $i$ after the effect
of the systematic variations, was calculated as
\[ \mu'_i = \mu_i\prod_j (1+\sigma_{ij})^{\delta_j}, \]
where $\mu_i$, which depends on the $M_{eq}$ and $\lambda$, is the number of
expected events in bin $i$ with no systematic variation
and $\sigma_{ij}$ gives the fractional variation of $\mu_i$ under the
nominal shift in the $j^{\rm th}$ systematic parameter.
This definition of $\mu'_i$ reduces to a linear dependence of
$\mu'_i$ on each $\delta_j$ when $\delta_j$ is small while avoiding
the possibility of $\mu'_i$ becoming negative which would arise if
$\mu'_i$ was defined as a linear function of the $\delta_j$'s.



%where $i$ refers to any given $\cos \theta^*$-$M_{ljs}$ bin,
%$j$ refers to the systematic uncertainty from source $j$
%as mentioned in Sections \ref{sec:nc_systematic} 
%and \ref{sec:cc_systematic}, and
%$\mu'_{i}$ was calculated as
%\begin{equation}
%\mu'_i=\mu_i \prod_j{(1+\sigma_{ij})}^{\delta_j}.
%\notag
%\end{equation}
%Here, $N_i$ is the 
%number of observed events 
%in bin $i$,
%$\mu_i$=$\mu_i$($M_{eq}$,$\lambda$) is
%the number of events expected from the SM and
%resonance production, and
%$\sigma_{ij}$ is the systematic uncertainty from source $j$
%on $\mu_i$.  

Figure~\ref{br_scalar} shows the $\lambda$
limits as a function
of $\beta_{e q}$ and $\beta_{\nu q}$, 
the branching ratios for $LQ\to eq$ and $LQ\to \nu q$, respectively,
and as a function of the resonance mass.
These limits were obtained for the 
four scalar resonant states listed in Table~\ref{tab_resst}
and for $\lambda=0.1$ and $\lambda=0.3$, where
the latter ($\lambda \approx\sqrt{4\pi\alpha_{EW}}$)
corresponds to the electroweak (EW) coupling. 
The equivalent plots for vector resonant states are shown in 
Fig.~\ref{br_vector}.
For the $e^+u$ and $e^-d$  resonances 
%(Figs.~\ref{br_scalar} b),d) and~\ref{br_vector} b),d)), 
$\nu q$ decays are forbidden
by charge conservation.
The $e^-u$ and $e^+d$ resonances 
%(Figs.~\ref{br_scalar} a),c) and~\ref{br_vector} a),c)) 
can decay to either
$eq$ or $\nu q$. 
The $e q \! + \! \nu q$ limits, which assume 
$\beta_{\nu q}+\beta_{e q}=1$, 
are largely independent of the branching ratio,
and are typically in excess of 285 $\gev$ for the EW coupling.
The limits obtained using only the  
$eq$ (or the $\nu q$) data set
allow for decay modes other than $eq$ and $\nu q$,
so the $e q$ and $\nu q$ limits are applicable 
to a wider range of physics models than the combined 
$eq \! + \! \nu q$ results.
Similar limits have been presented by the H1 collaboration
for scalar $e^-d$ and $e^-u$ resonances~\cite{pl:b523:234}.

For comparison, the limits on scalar
resonances reported by the $\DO$ experiment~\cited0lq 
at the Tevatron are shown in Fig.~\ref{br_scalar}.
For a scalar resonant state with $\beta_{eq}$=1,
the $\DO$ and CDF~\cite{CDF_1stlq_results} limits are
$225\gev$ and $213\gev$, respectively, leading to a combined 
Tevatron limit of
$242\gev$~\cite{tevatron-combined-limit}.  These limits are
independent of both coupling and quark flavor, but
degrade (in the case of $\DO$ for example) 
to 204 GeV (98 $\gev$) as $\beta_{eq}$ decreases
from 100\% to 50\% (0\%).

The limits presented in Fig.~\ref{br_scalar}
apply to squarks with
$\rpviolate$ couplings to $eq$.
For example, the $\lambda$-limit contours on $S_{e^+d}$ with 
the decay $S_{e^+d} \to e^+d$
(the dashed curves in Fig.~\ref{br_scalar}c)
apply to $\tilde{u}_j$ squarks with coupling $\lambda_{1j1}$
and subsequent decay $\tilde{u}_j \to e^+d$, where the
subscript $j$ indicates the squark generation.
The limit curves on $S_{e^-u}$ with
decay $S_{e^-u} \to e^-u$
(the dashed curves in Fig.~\ref{br_scalar}a)
and with $S_{e^-u} \to \nu d$
(the dotted curves in the same plot)
apply to $\tilde{d}_j$ squarks with
coupling $\lambda_{11j}$ and subsequent
decays $\tilde{d}_j \to e^-u$ and $\tilde{d}_j \to \nu d$,
respectively.  With the $e^-u$ and $\nu d$ channels combined
and with $\beta_{e^-u}$ = $\beta_{\nu d}$ = 0.5$\beta$,
the limit for squark $\tilde{d}_j$ on $\lambda_{11j}\sqrt{\beta}$
is 0.1 for mass 276 $\gev$ and 0.3 for mass 295 $\gev$.
In this case, the $R_p$-conserving decay branching ratio of 
$\tilde{d}_j \to \chi_k q_j$ is 1-$\beta$,
where $\chi_k$ is the gaugino.


The limit on the resonant-state production cross section,
$\sigma_{\rm limit}$, was calculated by using the NWA
as shown in Eq.~(\ref{eqn_nwidth}) with $\lambda=\lambda_{\rm limit}$.
Figure \ref{resonance_cs} shows the results for the scalar
and vector resonant states.
Limits on the calculated production cross section
with only $eq$ data samples
(assuming $\beta_{eq}=$ 0.5), with only $\nu q$ data samples
(assuming $\beta_{\nu q}=$ 0.5) and with all the data samples combined
(assuming $\beta_{eq}=\beta_{\nu q}=$ 0.5) are shown 
as a function of $M_{eq}$.
Usually the limit becomes stricter after combining the
$eq$ and $\nu q$ data samples.


\section{Limits on BRW leptoquark model}
\label{sec_limits}


The two-dimensional ($M_{ljs}$-$\cos\theta^*$) 
likelihood method described above
%as used for setting limits on the general resonant states,
was also used to set limits on the Yukawa coupling,
$\lambda$, of the BRW LQs.
The full LQ cross section was used, including
the $s$-channel and $u$-channel contributions 
and interference with DIS.
The difference of the limits thus obtained to
those obtained by using NWA is negligible 
below the LQ mass, $M_{LQ}$, of 280 $\gev$.


The coupling limits of
the 14 BRW LQs listed in Table~\ref{tab:brwlq}
were calculated as a function of $M_{LQ}$.
%(Other BRW LQs that only couple to $\nu q$ and therefore
%could not be probed at HERA are not listed here.)
The presence of leptoquarks with $M_{LQ}>\sqrt{s}$ 
would affect the
observed mass spectra, particularly at high mass,
mainly due to $u$-channel exchange
and the interference effects.
Therefore, it is possible to extend the
limits beyond $\sqrt{s}$.  
Coupling limits were calculated
for masses up to $400\gev$.


The combined search in the $LQ\to eq$ and $LQ\to \nu q$ topologies,
when applicable,
produces more stringent
limits on leptoquark production.
An example is shown in Fig.~\ref{llimitf2s0lf0v0l}a
for the $V_0^L$ LQ produced through $e^+d$ fusion, 
which decays to $e^+d$ and $\bar{\nu} u$ with equal probability, 
and for the $S_0^L$ LQ produced through $e^-u$ fusion, 
which decays to $e^-u$ and $\nu d$ with equal probability.
The limits obtained with only the $eq$ data samples,
only the $\nu q$ data samples and the combined samples are shown
for each LQ. If a coupling strength 
$\lambda=0.3$ is assumed,
the production of an $V_0^L$ LQ is excluded up to a
mass of 284 (286)$\gev$ using $eq$ ($\nu q$) samples only,
while it is excluded up to 386$\gev$ with the combined samples.
For the $S_0^L$, the mass limit is 298 (301)$\gev$ using
$eq$ ($\nu q$) samples only and the combined mass limit is $351\gev$.


Also shown in Fig.~\ref{llimitf2s0lf0v0l}b
are the limits on the $S^L_0$ LQ from
$\DO$, OPAL~\cite{OPAL_1stlq_results} and L3~\cite{L3_1stlq_results}.
%The limits from L3 are stricter than
%the results from OPAL and this search.
The most stringent limits in the high-mass region 
(above 200 GeV) from
the LEP experiments come from an indirect search through
the $t$-channel LQ exchange between the incoming electron
and positron.  
%These results also depend on the
%LQ Yukawa coupling to the lepton and quark, $\lambda$.
%In general
%the LEP limits are similar to the present results for LQs with masses
%above 300 $\gev$.
%In general, for LQs with masses above 300 $\gev$,
%LEP has similar limits to those from ZEUS.


Figure \ref{llimitf0f2} shows the coupling
limits on the scalar and vector BRW LQs with $F=0$ and $F=2$,
respectively, where $F=3B+L$ is the fermion number of the LQ
and $B$ and $L$ are the baryon and lepton numbers, respectively. 
%The limits
%were extended beyond the center-of-mass energy.
The limits on $\lambda_{LQ}$ at $M_{LQ}=400\gev$
range from 0.3 to 1.0. 
In general, present results are significantly better than LEP
limits below 300 $\gev$ and comparable above 300 $\gev$.
%In general
%the LEP limits are similar to the present results for LQs with masses
%above 300 $\gev$.
The H1 collaboration has presented similar
limits on $F=0$~\cite{epj:c11:447} and
$F=2$~\cite{pl:b523:234} LQs.
The excluded mass regions
for BRW LQs with $\lambda=$~0.1 
and with $\lambda=$~0.3 are summarized in Table \ref{limit_table}.
They range from 248 to 290~$\gev$ for
$\lambda=$~0.1 and from 273 to 386~$\gev$
for $\lambda=$~0.3.

\section{Conclusions}


The total $ep$ data recorded by the ZEUS experiment at HERA
were used to search for the presence of a narrow-width
resonance decaying into 
a lepton and a jet,
with the final-state lepton being either an electron
or a neutrino. The data samples include
$16.7\pbi$ of $e^-p$ and
$114.8\pbi$ of $e^+p$ collisions.
No evidence was found for resonance
production, either in the $eq$ or $\nu q$ topology.
Limits were set on the coupling strength of 
resonant states that could decay in these topologies using a 
two-dimensional likelihood analysis. 
With the combined $eq$ and $\nu q$ topologies,
a scalar $e^-u$ ($e^+d$) resonant state is excluded up to
a mass of 275 (265) $\gev$ for coupling strength $\lambda=0.1$. 
The combined limits depend very weakly
on the resonance-decay branching ratio. Limits
on the coupling strength of 
Buchm$\ddot{\rm{u}}$ller-R$\ddot{\rm{u}}$ckl-Wyler-type 
leptoquarks with masses up to 400 $\gev$
are also presented.
%The excluded mass regions vary with BRW LQ type,
%ranging from 248 to $290\gev$ at $\lambda=0.1$,
%which are
%most stringent limits available to date.
The excluded mass regions depend on BRW LQ type
and the coupling. At $\lambda=$~0.1, they
range from 248 to 290~$\gev$, which are the most stringent
limits available to date.

\section*{Acknowledgements}
We thank the DESY Directorate for their strong support 
and encouragement,
and the HERA machine group for their diligent efforts.
We are grateful for the  support of the DESY computing
and network services. The design, construction and installation
of the ZEUS detector have been made possible by the ingenuity and effort
of many people who are not listed
as authors.

%------------------------------------------------------------------------------
%       Bibliography
%------------------------------------------------------------------------------
%%\include{resonance-ref}
%%\bibliography{DESY-03-041.bbl}
\clearpage
\providecommand{\etal}{et al.\xspace}
\providecommand{\coll}{Coll.\xspace}
\catcode`\@=11
\def\@bibitem#1{%
\ifmc@bstsupport
  \mc@iftail{#1}%
    {;\newline\ignorespaces}%
    {\ifmc@first\else.\fi\orig@bibitem{#1}}
  \mc@firstfalse
\else
  \mc@iftail{#1}%
    {\ignorespaces}%
    {\orig@bibitem{#1}}%
\fi}%
\catcode`\@=12
\begin{mcbibliography}{10}

\bibitem{pl:b191:442}
W.~Buchm\"uller, R.~R\"uckl and D.~Wyler,
\newblock Phys.\ Lett.{} {\bf B~191},~442~(1987).
\newblock Erratum in Phys.~Lett.~{\bf B~448}, 320 (1999)\relax
\relax
\bibitem{np:b397:3}
J.~Butterworth and H.~Dreiner,
\newblock Nucl.\ Phys.{} {\bf B~397},~3~(1993)\relax
\relax
\bibitem{epj:c16:253}
ZEUS \coll, J.~Breitweg \etal,
\newblock Eur.\ Phys.\ J.{} {\bf C~16},~253~(2000)\relax
\relax
\bibitem{pr:d63:052002}
ZEUS \coll, J.~Breitweg \etal,
\newblock Phys.\ Rev.{} {\bf D~63},~052002~(2001)\relax
\relax
\bibitem{zeus:1993:bluebook}
ZEUS \coll, U.~Holm~(ed.),
\newblock {\em The {ZEUS} Detector}.
\newblock Status Report (unpublished), DESY (1993),
\newblock available on
  \texttt{http://www-zeus.desy.de/bluebook/bluebook.html}\relax
\relax
\bibitem{nim:a279:290}
N.~Harnew \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~279},~290~(1989)\relax
\relax
\bibitem{npps:b32:181}
B.~Foster \etal,
\newblock Nucl.\ Phys.\ Proc.\ Suppl.{} {\bf B~32},~181~(1993)\relax
\relax
\bibitem{nim:a338:254}
B.~Foster \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~338},~254~(1994)\relax
\relax
\bibitem{nim:a309:77}
M.~Derrick \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~309},~77~(1991)\relax
\relax
\bibitem{nim:a309:101}
A.~Andresen \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~309},~101~(1991)\relax
\relax
\bibitem{nim:a321:356}
A.~Caldwell \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~321},~356~(1992)\relax
\relax
\bibitem{nim:a336:23}
A.~Bernstein \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~336},~23~(1993)\relax
\relax
\bibitem{desy-92-066}
J.~Andruszk\'ow \etal,
\newblock Preprint \mbox{DESY-92-066}, DESY, 1992\relax
\relax
\bibitem{zfp:c63:391}
ZEUS \coll, M.~Derrick \etal,
\newblock Z.\ Phys.{} {\bf C~63},~391~(1994)\relax
\relax
\bibitem{acpp:b32:2025}
J.~Andruszk\'ow \etal,
\newblock Acta Phys.\ Pol.{} {\bf B~32},~2025~(2001)\relax
\relax
\bibitem{cpc:135:238}
T.~Sj\"{o}strand,
\newblock Comp.\ Phys.\ Comm.{} {\bf 135},~238~(2001)\relax
\relax
\bibitem{pythia_lq61_hera}
C.~Friberg, E.~Norrbin and T.~Sj\"ostrand,
\newblock Phys. Lett.{} {\bf B~403},~329~(1997)\relax
\relax
\bibitem{cpc:69:155}
A.~Kwiatkowski, H.~Spiesberger and H.-J.~M\"ohring,
\newblock Comp.\ Phys.\ Comm.{} {\bf 69},~155~(1992)\relax
\relax
\bibitem{cpc:81:381}
K.~Charchula, G.A.~Schuler and H.~Spiesberger,
\newblock Comp.\ Phys.\ Comm.{} {\bf 81},~381~(1994)\relax
\relax
\bibitem{spi:www:djangoh11}
H.~Spiesberger,
\newblock {\em {\sc heracles} and {\sc djangoh}: Event Generation for $ep$
  Interactions at {HERA} Including Radiative Processes}, 1998,
\newblock available on \texttt{http://www.desy.de/\til
  hspiesb/djangoh.html}\relax
\relax
\bibitem{cpc:101:108}
G.~Ingelman, A.~Edin and J.~Rathsman,
\newblock Comp.\ Phys.\ Comm.{} {\bf 101},~108~(1997)\relax
\relax
\bibitem{pr:d55:1280}
H.L.~Lai \etal,
\newblock Phys.\ Rev.{} {\bf D~55},~1280~(1997)\relax
\relax
\bibitem{epj:c14:285}
M.~Botje,
\newblock Eur.\ Phys.\ J.{} {\bf C~14},~285~(2000)\relax
\relax
\bibitem{tech:cern-dd-ee-84-1}
R.~Brun et al.,
\newblock {\em {\sc geant3}},
\newblock Technical Report CERN-DD/EE/84-1, CERN, 1987\relax
\relax
\bibitem{zfp:c74:207}
ZEUS \coll, J.~Breitweg \etal,
\newblock Z.\ Phys.{} {\bf C~74},~207~(1997)\relax
\relax
\bibitem{np:b406:187}
S.~Catani \etal,
\newblock Nucl.\ Phys.{} {\bf B~406},~187~(1993)\relax
\relax
\bibitem{pr:d48:3160}
S.D.~Ellis and D.E.~Soper,
\newblock Phys.\ Rev.{} {\bf D~48},~3160~(1993)\relax
\relax
\bibitem{epj:c12:411}
ZEUS \coll, J.~Breitweg \etal,
\newblock Eur.\ Phys.\ J.{} {\bf C~12},~411~(2000)\relax
\relax
\bibitem{pl:b539:197}
ZEUS \coll, S.~Chekanov \etal,
\newblock Phys.\ Lett.{} {\bf B~539},~197~(2002)\relax
\relax
\bibitem{zeus_nlo_fit}
ZEUS \coll, S.~Chekanov \etal,
\newblock Phys.\ Rev.{} {\bf D~67},~012007~(2003)\relax
\relax
\bibitem{zfp:c74:611}
T.~Plehn \etal,
\newblock Z.\ Phys.{} {\bf C~74},~611~(1997)\relax
\relax
\bibitem{zfp:c75:453}
Z.~Kunszt and W.J.~Stirling,
\newblock Z.\ Phys.{} {\bf C~75},~453~(1997)\relax
\relax
\bibitem{pl:b523:234}
H1 \coll, C.~Adloff \etal,
\newblock Phys.\ Lett.{} {\bf B~523},~234~(2001)\relax
\relax
\bibitem{DO_1stlq_eejets}
D{\O} \coll, B.~Abbott \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 79},~4321~(1997)\relax
\relax
\bibitem{DO_1stlq_results}
D{\O} \coll, B.~Abbott \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 80},~2051~(1998)\relax
\relax
\bibitem{DO_1stlq_sum}
D{\O} \coll, V.M.~Abazov \etal,
\newblock Phys.\ Rev.{} {\bf D~64},~092004~(2001)\relax
\relax
\bibitem{DO_1stlq_nunujets}
D{\O} \coll, V.M.~Abazov \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 88},~191801~(2002)\relax
\relax
\bibitem{CDF_1stlq_results}
CDF \coll, F.~Abe \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 79},~4327~(1997)\relax
\relax
\bibitem{tevatron-combined-limit}
Leptoquark Limits Combination Working Group, C.~Grosso-Pilcher, G.~Landsberg
  and M.~Paterno,
\newblock Preprint \mbox{hep-ex/9810015}\relax
\relax
\bibitem{OPAL_1stlq_results}
OPAL \coll, G.~Abbiendi \etal,
\newblock Eur. Phys. J.{} {\bf C~6},~1~(1999)\relax
\relax
\bibitem{L3_1stlq_results}
L3 \coll, M. Acciari \etal,
\newblock Phys.\ Lett.{} {\bf B~489},~81~(2000)\relax
\relax
\bibitem{epj:c11:447}
H1 \coll, C.~Adloff \etal,
\newblock Eur.\ Phys.\ J.{} {\bf C~11},~447~(1999).
\newblock Erratum in Eur.~Phys.~J.~{\bf C~14}, 553 (2000)\relax
\relax
\bibitem{zfp:c46:679}
A.~Djouadi \etal,
\newblock Z.\ Phys.{} {\bf C~46},~679~(1990)\relax
\relax
\end{mcbibliography}

%------------------------------------------------------------------------------
%       Tables
%------------------------------------------------------------------------------
%%\include{resonance-tab}
\clearpage
\newpage
%------------------------------------------
% luminosity
%------------------------------------------
\begin{table}[ptb]
\begin{center}
\begin{tabular}
[c]{|c|c|c|c|c|c|c|}
\hline
 Period  & $E_p$ (GeV)  & $E_e$ (GeV) & $\sqrt{s}$ (GeV) & $e$ charge 
& luminosity ($\pbi$)  & $\delta_{lumi}$\\ 
 \hline \hline
94-97    & 820  & 27.5  & 300 & $e^+$  & 48.5 
   & $\pm$1.6\% \\ \hline
98-99    & 920  & 27.5  & 318 & $e^-$  & 16.7
   & $\pm$1.8\% \\ \hline
99-00    & 920  & 27.5  & 318 & $e^+$  & 66.3
   & $\pm$2.25\% \\ \hline
\end{tabular}
\end{center}
\caption{The characteristics of 
the three data samples used for the present study;
$\delta_{lumi}$ is the uncertainty of the measured luminosity.
%The numbers in the parathesis are the luminosities used in
%the $eq \to \nu q$ channel, which are slightly different
%from the luminosities used in the $eq\to eq$ channel, due to
%different selection requirements.
}
\label{tab:lumi}
\end{table}

%-------------------------------------------
% Many experiment test for NC channel
%-------------------------------------------
\begin{table}[ptb]
\begin{center}
\begin{tabular}[c]{|c||c|c||c|c|}\hline
     & \multicolumn{2}{|c||}{No $\cos\theta^*$ cut}
     & \multicolumn{2}{|c|}{$\cos\theta^*<$0.4} \\ \hline
     &  $e^+p$ &  $e^-p$ & $e^+p$ & $e^-p$ \\ \hline\hline
$P_{min}$ & 0.26\%   & 0.032\%  & 1.9\% & 4.3\% \\ \hline
$M_{ej}$($\gev$)  & 121 & 151   & 158   & 151   \\ \hline
$N_{obs}$ & 2575     & 305      & 73    & 27    \\ \hline
$\mu_{SM}$& 2436     & 249      & 56.4  & 18.8  \\ \hline
$F$       & 35\%     & 6\%      & 41\%  & 56\%  \\ \hline
\end{tabular}
\caption{Results of the significance analysis on
the $M_{ej}$ spectra:
$P_{min}$ is the minimum probability along the 
$M_{ej}$ spectra, as defined in Eq.~(\ref{poisson_more});
$N_{obs}$ is the number of observed events
at the corresponding $M_{ej}$;
$\mu_{SM}$ is the expectation from the SM background;
$F$ is the fraction of the simulated experiments 
with the minimum probability $P<P_{min}$.}
\label{tab:many_experiment_nc}
\end{center}
\end{table}


%-------------------------------------------
% Many experiment test for CC channel
%-------------------------------------------
\begin{table}[ptb]
\begin{center}
\begin{tabular}[c]{|c||c|c||c|c|}\hline
     & \multicolumn{2}{|c||}{No $\cos\theta^*$ cut}
     & \multicolumn{2}{|c|}{$\cos\theta^*<$0.4} \\ \hline
     &  $e^+p$ &  $e^-p$ & $e^+p$ & $e^-p$ \\ \hline\hline
$P_{min}$ & 1.8\%    &   9.9\%  & 1.1\% & 24.5\% \\ \hline
$M_{\nu j}$($\gev$) & 246  & 225   &  269  & 217    \\ \hline
$N_{obs}$ & 10       & 22       & 2     & 9      \\ \hline
$\mu_{SM}$& 4.5      & 16.2     & 0.16  & 6.8  \\ \hline
$F$   & 76\%     & 77\%     & 24\%  & 94\%  \\ \hline
\end{tabular}
\caption{Results of the significance analysis on
the $M_{\nu j}$ spectra.  For details, see the caption to
Table \ref{tab:many_experiment_nc}.}
\label{tab:many_experiment_cc}
\end{center}
\end{table}


%-------------------------------------
% resonance table
%-------------------------------------
\begin{table}[ptb]
\begin{center}
\begin{tabular}[c]{|c|c|c||c|c|c|}\hline
\multicolumn{3}{|c|}{Scalar} & \multicolumn{3}{|c|}{Vector} \\ \hline
Resonance   & Charge   & Decay   & Resonance & Charge & Decay \\ \hline
$S_{e^+ u}$ & 5/3 & $e^+ u$ & $V_{e^+ u}$ & 5/3 & $e^+ u$ \\
$S_{e^+ d}$ & 2/3 & $e^+ d$ & $V_{e^+ d}$ & 2/3 & $e^+ d$ \\ 
 & & $\bar \nu u$   & & & $\bar \nu u$ \\ \hline \hline
$S_{e^- u}$ & -1/3 & $e^- u$ & $V_{e^- u}$ & -1/3 & $e^- u$ \\
& & $\nu d$ &  &  &$\nu  d$ \\
$S_{e^-  d}$ & -4/3 & $e^-  d$ & $V_{e^- d}$ & -4/3 & $e^- d$ \\ \hline
\end{tabular}
\end{center}
\caption{First-generation scalar and vector
resonant states that can be produced in $e^{\pm}p$ scattering.
The top half of the table lists color-triplet 
states with fermion number
$F=L+3B=0$, while the bottom half lists those with $F=2$. The left and
right sets of columns list scalars and vectors, respectively.
%The $e^+ d$ and 
%$e^- u$ states both have decay channels similar to CC DIS.
%For the other states, only NC-like decays are allowed due to 
%charge conservation.
}
\label{tab_resst}
\end{table}


%--------------------------------------
% BRW table
%--------------------------------------
\begin{table}[hbpt]
\begin{displaymath}
\begin{tabular}{c|crlcc}

LQ species & $q$ & Production & Decay & Branching ratio & Coupling
 \\ \hline
$S_{1/2}^L$ & 5/3 & $e^+_R u_R$ & $e^+ u$ & 1 & $\lambda_L$ \\ 
$S_{1/2}^R$ & 5/3 & $e^+_L u_L $ & $e^+u$ & 1 & $\lambda_R$ \\ 
& 2/3 & $e^+_L d_L $ & $e^+ d$ & 1 & $-\lambda_R$ \\ 
${\tilde S}_{1/2}^L$ & -2/3 & $e^+_R d_R $ & $e^+d$ & 1 & $\lambda_L$ \\ 
$V_0^L$ & 2/3 & $e^+_R d_L $ & $e^+ d$ & 1/2 & $\lambda_L$ \\ 
&  & 
$$
& $\bar{\nu}_e u$ & 1/2 & $\lambda_L$\\ 
$V_0^R$ & 2/3 & $e^+_L d_R $ & $e^+ d$ & 1 & $\lambda_R$ \\ 
${\tilde V}_0^R$ & 5/3 & $e^+_L u_R $ & $e^+u$ & 1 & $\lambda_R$ \\ 
$V_1^L$ & 5/3 & $e^+_Ru_L $ & $e^+ u$ & 1 & $\sqrt{2}\lambda_L$\\ 
& 2/3 & $e^+_R d_L $ & $e^+ d$ & 1/2 & $-\lambda_L$\\ 
&  & 
$$
& $\bar{\nu}_e u$ & 1/2 & $\lambda_L$ \\ \hline
$S^L_0$          &-1/3& $e^-_Lu_L$   & $e^-u$  &1/2& $\lambda_L$\\
                 &    & $        $   &$\nu_ed$ &1/2& $-\lambda_L$\\
$S^R_0$          &-1/3& $e^-_Ru_R$   & $e^-u$  &1  & $\lambda_R$\\
$\tilde{S}^R_0$  &-4/3& $e^-_Rd_R$   & $e^-d$     & 1 & $\lambda_R$\\
$S^L_1$          &-1/3& $e^-_Lu_L$   & $e^-u$     &1/2& $-\lambda_L$\\
                 &    &            &$\nu_ed$ &1/2& $-\lambda_L$\\
                 &-4/3& $e^-_Ld_L$   &$e^-d$& 1 &$-\sqrt{2}\lambda_L$ \\
$V^L_{1/2}$      &-4/3& $e^-_Ld_R$   &$e^-d$      & 1 & $\lambda_L$ \\
$V^R_{1/2}$      &-4/3& $e^-_Rd_L$   &$e^-d$     & 1 & $\lambda_R$ \\
                 &-1/3& $e^-_Ru_L$   &$e^-u$     & 1 & $\lambda_R$ \\
$\tilde{V}^L_{1/2}$&-1/3&$e^-_Lu_R$  &$e^-u$     & 1 & $\lambda_L$ 
\\ \hline
\end{tabular}
\end{displaymath}
\caption{The $F=0$ (upper part) 
and $F=2$ (lower part) 
leptoquark species
of the Buchm$\ddot{{u}}$ller-R$\ddot{{u}}$ckl-Wyler
model \protect\cite{pl:b191:442}
and the corresponding couplings. Those LQs that couple only to
neutrino and quark and therefore could not be produced at HERA
are not listed.
The LQ species are classified according to their spin ($S$
for scalar and $V$ for vector), their chirality ($L$ or $R$) and 
their weak
isospin ($0,1/2,1$). The leptoquarks ${\tilde S}$ and ${\tilde V}$ 
differ by
two units of hypercharge from $S$ and $V$, respectively. In addition,
 the
electric charge $q$ of the leptoquarks, the production channel,
 as well as
their allowed decay channels assuming lepton-flavor conservation
are displayed.
The nomenclature follows the Aachen convention
%\protect\cite{proc:hera:1991:1034}.}
\protect\cite{zfp:c46:679}.}
\label{tab:brwlq}
\end{table}


%---------------------------------------------
% mass limit table for BRQ LQ with lambda 0.1
%---------------------------------------------
\begin{table}[h]
\begin{center}{\small
\begin{tabular}{|c||c|c|c|c|c|c|c|}
\hline
LQ Type (F=0)  &  $V_0^L$       & $V_0^R$     
         &      $\tilde{V}^R_0$   & $V_1^L$ & 
           $S_{1/2}^L$  & $S_{1/2}^R$ & $\tilde{S}_{1/2}^L$  \\
\hline\hline
%M(GeV)($\lambda$=0.1) &   266 &   270&   282 &   291&   282 &   282&   270 \\ \hline
%M(GeV)($\lambda$=0.3) &   369 &   287&   305 &   358&   308 &   303&   286 \\ \hline\hline
M(GeV)($\lambda$=0.1)  &   266 &   268&   282 &   290&   282 &   282&   269 \\ \hline
M(GeV)($\lambda$=0.3)  &   386 &   287&   305 &   367&   308 &   303&   286 \\ \hline\hline
LQ Type (F=2)  &  $S_0^L$    & $S_0^R$     
         & $\tilde{S}^R_0$   &  $S_1^L$ & 
           $V_{1/2}^L$  & $V_{1/2}^R$ & $\tilde{V}_{1/2}^L$  \\
\hline\hline
%M(GeV)($\lambda$=0.1) &   275 &   272&   247 &   275&   248 &   274&   272 \\ \hline
%M(GeV)($\lambda$=0.3) &   343 &   297&   273 &   299&   276 &   301&   311 \\ \hline\hline
M(GeV)($\lambda$=0.1) &   276  &   273&   248 &   275&   248 &   274&   273 \\ \hline
M(GeV)($\lambda$=0.3) &   351  &   298&   273 &   300&   277 &   302&   313 \\ \hline\hline
\end{tabular}\caption{Mass limit of the 14 BRW LQs at 
$\lambda$=0.1 and 0.3.}
\label{limit_table}
}\end{center}
\end{table}


%%% Local Variables: 
%%% mode: latex
%%% TeX-master: t
%%% End: 

%------------------------------------------------------------------------------
%       Figures
%------------------------------------------------------------------------------
%%\include{resonance-fig}
\clearpage
\newpage
%---------------------------------------
% feynman diagram
%---------------------------------------
\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_1.eps,height=16.cm}
\end{center}
\caption{Diagrams for $ep$ scattering at HERA
via (a) photon and (b) $Z^0$ exchange (NC) and via
$W$ exchange (CC). The leptoquark diagrams for
the same initial and final states are c) $s$-channel
LQ production and d) $u$-channel LQ exchange.
Here $e$ stands for both $e^+$ (positron) and $e^-$
(electron), and $\nu$ for both
$\nu$ (neutrino) and $\bar\nu$ (antineutrino).}
\label{lq_feynman}
\end{figure}


%---------------------------------------
% NC control plot
%---------------------------------------


\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_2.eps,height=20.cm}
\end{center}
\caption{Comparison of distributions from 94-00 $e^+p$ (a-d) 
and from 98-99 $e^-p$ data sets (e-h)
with the corresponding NC MC samples: 
(a,e) total transverse energy, $E_{T}$; 
(b,f) $E-P_Z$; (c,g) electron tranverse momentum, $P_{T}^{e}$, and
(d,h) jet transverse momentum, $P_{T}^{j}$.}
\label{nc_control}
\end{figure}

%--------------------
% NC mass
%--------------------

\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_3.eps,height=16.cm}
\end{center}
\caption{(a) Comparison of 
the $e^+p$ samples (dots) and the NC SM 
expectations (solid histogram) for the 
reconstructed invariant mass $M_{ej}$ in
the $e^+p \to e^+X$ topology.
The data (open squares) and the SM expectations (dashed
histogram) after the $\cos\theta^*<$0.4 cut are also shown.
(b) The ratio between the data and the SM expectation before the
$\cos\theta^*$ cut.
The shaded area shows the overall uncertainties of
the SM MC expectation.}
\label{nc_mass_posi}
\end{figure}


\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_4.eps,height=16.cm}
\end{center}
\caption{(a) Comparison of
the observed $e^-p$ samples (dots) and the NC SM 
expectations (solid histogram) for the 
reconstructed invariant mass $M_{ej}$ in
the $e^-p \to e^-X$ topology.
The data (open squares) and the SM expectations (dashed
histogram) after the $\cos\theta^*<$0.4 cut are also shown.
(b) The ratio between the data and the SM expectation before the
$\cos\theta^*$ cut.
The shaded area shows the overall uncertainties on
the SM MC expectation.}
\label{nc_mass_elec}
\end{figure}

%----------------------
% CC control
%----------------------

\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_5.eps,height=20.cm}
\end{center}
\caption{Comparison of distributions from 94-00 $e^+p$ (a-d)
and from 98-99 $e^-p$ data sets (e-h)
with the corresponding CC MC
samples for the selected distributions: 
(a,e) missing transverse energy, $P_{T}$; 
(b,f) $E-P_Z$; (c,g) neutrino energy, $E_{\nu}$, and
(d,h) jet transverse momentum, $P_{T}^{j}$.}
\label{cc_control}
\end{figure}

%----------------------------
% CC mass
%----------------------------

\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_6.eps,height=16.cm}
\end{center}
\caption{(a) Comparison of 
the observed $e^+p$ samples (dots) and the CC SM 
expectations (solid histogram) for the 
reconstructed invariant mass $M_{\nu j}$ in
the $e^+p \to \bar{\nu}X$ topology.
The data (open squares) and the SM expectations (dashed
histogram) after the $\cos\theta^*$$<$0.4 cut are also shown.
(b) The ratio between the data and the SM expectation before the
$\cos\theta^*$ cut.
The shaded area shows the overall uncertainties on
the SM MC expectation.}
\label{cc_mass_posi}
\end{figure}


\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_7.eps,height=16.cm}
\end{center}
\caption{(a) Comparison of 
the observed $e^-p$ samples (dots) and the CC SM 
expectations (solid histogram) for the 
reconstructed invariant mass $M_{\nu j}$ in
the $e^-p \to \nu X$ topology.
The data (open squares) and the SM expectations (dashed
histogram) after the $\cos\theta^*$$<$0.4 cut are also shown.
(b) The ratio between the data and the SM expectation before the
$\cos\theta^*$ cut.
The shaded area shows the overall uncertainties on
the SM MC expectation.}
\label{cc_mass_elec}
\end{figure}


\clearpage

%---------------------
% Resonances limit
%---------------------
\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_8.eps,height=16.cm}
\end{center}
\caption{The constant-$\lambda$ limits as a function
of the branching ratios into $eq$ and $\nu q$ 
(shown on the left and right axes, respectively),
and of the resonance mass ($x$ axes), 
for the scalar resonant 
states listed in Table~\ref{tab_resst}.
The dotted line corresponds to limits set with only the 
$ep\to \nu X$ data set,
the dashed line with only the $ep\to eX$ data set;
the solid black line is the limit set using 
both data sets, assuming $\beta_{eq}+\beta_{\nu q}=1$.
For each limit curve, the area to the left of the curve 
is the excluded region.
Results for the resonant states 
are shown for constant limit of $\lambda=0.1$
and $\lambda=0.3$.
The shaded area in each plot 
shows the area excluded by the $\DO$ experiment.}
\label{br_scalar}
\end{figure}


\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_9.eps,height=16.cm}
\end{center}
\caption{The constant-$\lambda$ limit contour for the vector resonant 
states listed in Table~\ref{tab_resst}.  For details, see the caption to
Fig. \ref{br_scalar}.}
\label{br_vector}
\end{figure}


\begin{figure}[tbph]
\begin{center}
\epsfig{figure=DESY-03-041_10.eps,height=16.cm}
\end{center}
\caption{
(a,b) Limits on the total production cross section
for a narrow scalar resonant state and
(c,d) the corresponding limits for a narrow vector resonant state
as shown in Table \ref{tab_resst}.
Limits derived from NC (CC) data samples assume a branching ratio
$\beta_{eq}$ ($\beta_{\nu q}$) of 1/2, while the
combined $eq \!~ +~ \! \nu q$ limits assume branching
ratios of $\beta_{eq}=\beta_{\nu q}=1/2$.}
\label{resonance_cs}
\end{figure}

\clearpage


%---------------------
% BRW LQ limits
%---------------------

\begin{figure}[ptb]
\centerline{\epsfxsize=11cm  \epsfysize=19cm
\epsfbox{DESY-03-041_11.eps}}
\vspace{-1.0cm}
\caption{Coupling limits as a function of LQ mass for (a) F=0 BRW LQ
$V^L_0$ and for (b) F=2 BRW LQ $S^L_0$.}
\label{llimitf2s0lf0v0l}
\end{figure}


\begin{figure}[ptb]
\centerline{\epsfxsize=16cm  \epsfysize=16cm
\epsfbox{DESY-03-041_12.eps}}
\caption{
Coupling limits as a function of LQ mass for 
scalar (a) and vector (b) F=0 BRW LQs and
for scalar (c) and vector (d) F=2 BRW LQs.
The areas above the curves are excluded.}
\label{llimitf0f2}
\end{figure}

%
%       ... that's it
%
\end{document}

def.tex
\newcommand{\ptmiss}{{\mbox{$\not\hspace{-.55ex}{P}_T$}}}
\newcommand{\rpviolate}{{\mbox{$\not\hspace{-.55ex}{R}_p$}}}

zeus_def.tex
%------------------------------------------------------------------------------
%       Standard ZEUS text fragments
%       ----------------------------
%       -> references system footnote
%------------------------------------------------------------------------------
\newcommand{\ZcoosysA}{%
The ZEUS coordinate system is a right-handed Cartesian system, with the $Z$
axis pointing in the proton beam direction, referred to as the ``forward
direction'', and the $X$ axis pointing left towards the center of HERA.
The coordinate origin is at the nominal interaction point.\xspace}
\newcommand{\ZcoosysB}{%
The ZEUS coordinate system is a right-handed Cartesian system, with the $Z$
axis pointing in the proton beam direction, referred to as the ``forward
direction'', and the $X$ axis pointing left towards the centre of HERA.
The coordinate origin is at the nominal interaction point.\xspace}
\newcommand{\Zpsrap}{%
The pseudorapidity is defined as $\eta=-\ln\left(\tan\frac{\theta}{2}\right)$,
where the polar angle, $\theta$, is measured with respect to the proton beam
direction.\xspace}
\newcommand{\ZcoosysfnA}{\footnote{\ZcoosysA}}
\newcommand{\ZcoosysfnB}{\footnote{\ZcoosysB}}
\newcommand{\ZcoosysfnAeta}{\footnote{\ZcoosysA\Zpsrap}}
\newcommand{\ZcoosysfnBeta}{\footnote{\ZcoosysB\Zpsrap}}
%------------------------------------------------------------------------------
%       -> introductory sentence for detector description
%------------------------------------------------------------------------------
\newcommand{\Zdetdesc}{%
A detailed description of the ZEUS detector can be found 
elsewhere~\cite{zeus:1993:bluebook}. A brief outline of the 
components that are most relevant for this analysis is given
below.\xspace}
%------------------------------------------------------------------------------
%       -> CTD description (coordinate system footnote is given as argument)
%------------------------------------------------------------------------------
\newcommand{\Zctddesc}[1]{%
Charged particles are tracked in the central tracking detector (CTD)~\citeCTD,
which operates in a magnetic field of $1.43\Tesla$ provided by a thin 
superconducting coil. The CTD consists of 72~cylindrical drift chamber 
layers, organized in 9~superlayers covering the polar-angle#1 region 
\mbox{$15^\circ<\theta<164^\circ$}. The transverse-momentum resolution for
full-length tracks is $\sigma(p_T)/p_T=0.0058p_T\oplus0.0065\oplus0.0014/p_T$,
with $p_T$ in $\Gev$.}
%------------------------------------------------------------------------------
%       -> CAL description
%------------------------------------------------------------------------------
\newcommand{\Zcaldesc}{%
The high-resolution uranium--scintillator calorimeter (CAL)~\citeCAL consists 
of three parts: the forward (FCAL), the barrel (BCAL) and the rear (RCAL)
calorimeters. Each part is subdivided transversely into towers and
longitudinally into one electromagnetic section (EMC) and either one (in RCAL)
or two (in BCAL and FCAL) hadronic sections (HAC). The smallest subdivision of
the calorimeter is called a cell.  The CAL energy resolutions, as measured under
test-beam conditions, are $\sigma(E)/E=0.18/\sqrt{E}$ for electrons and
$\sigma(E)/E=0.35/\sqrt{E}$ for hadrons ($E$ in $\Gev$).}
%------------------------------------------------------------------------------
%       Handy macros, mainly for text mode:
%       -----------------------------------
%       -> unknown marker
%------------------------------------------------------------------------------
\newcommand{\xxx}{\hbox{$\qsm\qsm\qsm$}\xspace}
%------------------------------------------------------------------------------
%       -> D0 acronym
%------------------------------------------------------------------------------
\newcommand{\DO}{{D{\O}}\xspace}
%------------------------------------------------------------------------------
%       -> (anti-)something with correct hyphenation
%------------------------------------------------------------------------------
\newcommand{\Anti}[1]{\hbox{(anti-)}\discretionary{}{}{}#1}
\newcommand{\anti}[1]{(anti\discretionary{-)}{}{)}#1}
%------------------------------------------------------------------------------
%       -> characters for typewriter font (used for http addresses)
%------------------------------------------------------------------------------
\chardef\usc=95
\chardef\til=126
%------------------------------------------------------------------------------
%       -> xdotspace (like xspace, but adds period unless
%          another period follows)
%       -> "nn% C.L."
%------------------------------------------------------------------------------
\catcode`\@=11 % @ signs are now treated as letters
\DeclareRobustCommand\xdotspace{\futurelet\@let@token\@xdotspace}
\def\@xdotspace{%
  \ifx\@let@token.\else
  \ifx\@let@token\bgroup.\else
  \ifx\@let@token\egroup.\else
  \ifx\@let@token\/.\else
  \ifx\@let@token\ .\else
  \ifx\@let@token~.\else
  \ifx\@let@token!.\else
  \ifx\@let@token,.\else
  \ifx\@let@token:.\else
  \ifx\@let@token;.\else
  \ifx\@let@token?.\else
  \ifx\@let@token/.\else
  \ifx\@let@token'.\else
  \ifx\@let@token).\else
  \ifx\@let@token-.\else
  \ifx\@let@token\@xobeysp.\else
  \ifx\@let@token\space.\else
  \ifx\@let@token\@sptoken.\else
   .\space
   \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
\catcode`\@=12 % @ signs are no longer letters
\newcommand{\CL}[1]{$#1\%$~C.L\xdotspace}
%------------------------------------------------------------------------------
%       -> vertical rule of width zero and variable height & depth
%------------------------------------------------------------------------------
\newcommand{\stru}[2]{%
   \relax\ifmmode\hbox{\vrule height#1 depth#2 width0pt}%
   \else\vrule height#1 depth#2 width0pt\fi}
%------------------------------------------------------------------------------
%       -> underline with resonable distance text - line
%------------------------------------------------------------------------------
\newcommand{\uline}[1]{$\underline{\hbox{#1\stru{0.pt}{.485ex}}}$}
%------------------------------------------------------------------------------
%       -> roman numbers (uppercase and lowercase)
%------------------------------------------------------------------------------
\newcommand{\Ronum}[1]{\uppercase\expandafter{\romannumeral#1}}
\newcommand{\ronum}[1]{\expandafter{\romannumeral#1}}
%------------------------------------------------------------------------------
%       -> definition for LaTeX4zeus
%------------------------------------------------------------------------------
\DeclareRobustCommand{\LaTeXZ}{%
  \LaTeX\kern-.05em4\kern-.1em
  {\raisebox{-0.2ex}{$\scriptstyle\text{ZEUS}$}}\xspace}
%------------------------------------------------------------------------------
%       -> umlaut definitions for references (needed since BiBTeX 
%          MACRO strings cannot contain quotes)
%------------------------------------------------------------------------------
\newcommand{\Auml}{\"A}
\newcommand{\Ouml}{\"O}
\newcommand{\Uuml}{\"U}
\newcommand{\auml}{\"a}
\newcommand{\ouml}{\"o}
\newcommand{\uuml}{\"u}
%------------------------------------------------------------------------------
%       -> shorthands for equation, figure, table, section references
%          (require standard use of labels: eq-... for equations, cha-...
%           for chapters, sec-... for (sub)sections, tab-... for tables
%           and fig-... for figures)
%------------------------------------------------------------------------------
\newcommand{\eq}[1]{(\ref{eq-#1})}
\newcommand{\eqsand}[2]{(\ref{eq-#1}) and~(\ref{eq-#2})}
\newcommand{\eqsto}[2]{(\ref{eq-#1})--(\ref{eq-#2})}
\newcommand{\eqstwo}[2]{(\ref{eq-#1},\ref{eq-#2})}
\newcommand{\eqsthr}[3]{(\ref{eq-#1},\ref{eq-#2},\ref{eq-#3})}
\newcommand{\eqsfou}[4]{(\ref{eq-#1},\ref{eq-#2},\ref{eq-#3},\ref{eq-#4})}
\newcommand{\Eq}[1]{Equation~(\ref{eq-#1})}
\newcommand{\Eqsto}[2]{Equations~(\ref{eq-#1})--(\ref{eq-#2})}
\newcommand{\fig}[1]{Fig.~\ref{fig-#1}}
\newcommand{\Fig}[1]{Figure~\ref{fig-#1}}
\newcommand{\figand}[2]{Figs.~\ref{fig-#1} and~\ref{fig-#2}}
\newcommand{\Figand}[2]{Figures~\ref{fig-#1} and~\ref{fig-#2}}
\newcommand{\tab}[1]{Table~\ref{tab-#1}}
\newcommand{\Tab}[1]{Table~\ref{tab-#1}}
\newcommand{\taband}[2]{Tables~\ref{tab-#1} and~\ref{tab-#2}}
\newcommand{\cha}[1]{Chap.~\ref{cha-#1}}
\newcommand{\Cha}[1]{Chapter~\ref{cha-#1}}
\newcommand{\sect}[1]{Sect.~\ref{sec-#1}}
\newcommand{\Sect}[1]{Section~\ref{sec-#1}}
\newcommand{\sectand}[2]{Sects.~\ref{sec-#1} and~\ref{sec-#2}}
\newcommand{\sectto}[2]{Sects.~\ref{sec-#1} to~\ref{sec-#2}}
\newcommand{\Sectand}[2]{Sections~\ref{sec-#1} and~\ref{sec-#2}}
\newcommand{\Sectto}[2]{Sections~\ref{sec-#1} to~\ref{sec-#2}}
%------------------------------------------------------------------------------
%       -> log file message
%------------------------------------------------------------------------------
\newcommand{\LogMess}[1]{\typeout{^^J==> #1^^J}}
%------------------------------------------------------------------------------
%       Some special symbols and settings for math mode:
%       ------------------------------------------------
%       -> redefine mathbf
%------------------------------------------------------------------------------
\DeclareMathAlphabet{\mathbf}{OT1}{cmr}{bx}{sl}
%------------------------------------------------------------------------------
%       -> physics units (eV and multiples)
%------------------------------------------------------------------------------
\newcommand{\eVdist}{\kern-0.06667em}
\newcommand{\Ev}{{\text{e}\eVdist\text{V\/}}}
\newcommand{\Kev}{{\text{ke}\eVdist\text{V\/}}}
\newcommand{\Mev}{{\text{Me}\eVdist\text{V\/}}}
\newcommand{\Gev}{{\text{Ge}\eVdist\text{V\/}}}
\newcommand{\Tev}{{\text{Te}\eVdist\text{V\/}}}
\newcommand{\ev}{{\,\text{e}\eVdist\text{V\/}}}
\newcommand{\kev}{{\,\text{ke}\eVdist\text{V\/}}}
\newcommand{\mev}{{\,\text{Me}\eVdist\text{V\/}}}
\newcommand{\gev}{{\,\text{Ge}\eVdist\text{V\/}}}
\newcommand{\tev}{{\,\text{Te}\eVdist\text{V\/}}}
%------------------------------------------------------------------------------
%       -> various other units
%------------------------------------------------------------------------------
\newcommand{\mb}{\,\text{mb}}
\newcommand{\mub}{\,\upmu\text{b}}
\newcommand{\nb}{\,\text{nb}}
\newcommand{\pb}{\,\text{pb}}
\newcommand{\fb}{\,\text{fb}}
\newcommand{\mubi}{\,\upmu\text{b}^{-1}}
\newcommand{\mbi}{\,\text{mb}^{-1}}
\newcommand{\nbi}{\,\text{nb}^{-1}}
\newcommand{\pbi}{\,\text{pb}^{-1}}
\newcommand{\fbi}{\,\text{fb}^{-1}}
\newcommand{\met}{\,\text{m}}
\newcommand{\nm}{\,\text{nm}}
\newcommand{\mum}{\,\upmu\text{m}}
\newcommand{\mm}{\,\text{mm}}
\newcommand{\cm}{\,\text{cm}}
\newcommand{\km}{\,\text{km}}
\newcommand{\Amp}{\,\text{A}}
\newcommand{\nA}{\,\text{nA}}
\newcommand{\muA}{\,\upmu\text{A}}
\newcommand{\mA}{\,\text{mA}}
\newcommand{\kA}{\,\text{kA}}
\newcommand{\Hz}{\,\text{Hz}}
\newcommand{\kHz}{\,\text{kHz}}
\newcommand{\MHz}{\,\text{MHz}}
\newcommand{\GHz}{\,\text{GHz}}
\newcommand{\ppm}{\,\text{ppm}}
\newcommand{\ppb}{\,\text{ppb}}
\newcommand{\scd}{\,\text{s}}
\newcommand{\ps}{\,\text{ps}}
\newcommand{\ns}{\,\text{ns}}
\newcommand{\mus}{\,\upmu\text{s}}
\newcommand{\ms}{\,\text{ns}}
\newcommand{\rad}{\,\text{rad}}
\newcommand{\murad}{\,\upmu\text{rad}}
\newcommand{\mrad}{\,\text{mrad}}
\newcommand{\gra}{\,\text{g}}
\newcommand{\pg}{\,\text{pg}}
\newcommand{\nang}{\,\text{ng}}
\newcommand{\mug}{\,\upmu\text{g}}
\newcommand{\mg}{\,\text{mg}}
\newcommand{\kg}{\,\text{kg}}
\newcommand{\Tesla}{\,\text{T}}
\newcommand{\Kelvin}{\,\text{K}}
%------------------------------------------------------------------------------
%       -> additional operators
%------------------------------------------------------------------------------
\newcommand{\odiv}{{\operatorname*{div}}}
\newcommand{\ograd}{{\operatorname*{grad}}}
\newcommand{\orot}{{\operatorname*{rot}}}
\newcommand{\odiag}{{\operatorname*{diag}}}
\newcommand{\ocov}{{\operatorname*{cov}}}
%------------------------------------------------------------------------------
%       -> fraction with slash instead of ratio bar
%------------------------------------------------------------------------------
\newcommand{\slashfrac}[2]{%
  \raisebox{0.5ex}{\ensuremath #1}\kern-0.12em/\kern-0.08em
  \raisebox{-.8ex}{\ensuremath #2}}
%------------------------------------------------------------------------------
%       -> shorthand for "integral limits below and above"
%------------------------------------------------------------------------------
\newcommand{\intl}{\int\limits}
\newcommand{\ointl}{\oint\limits}
%------------------------------------------------------------------------------
%       -> d'Alembert operator
%------------------------------------------------------------------------------
\newcommand{\sqr}[3]{%
    {\vcenter{\hrule height.#3ex\hbox{\vrule width.#2ex height#1ex
     \kern#1ex\vrule width.#3ex}\hrule height.#2ex}}}
\newcommand{\dalem}{\mathchoice\sqr{1.3}{08}{24}\sqr{1.4}{08}{24}
                    \sqr{1.15}{07}{21}\sqr{1.0}{06}{18}\,}
%------------------------------------------------------------------------------
%       -> vectors and matrices
%------------------------------------------------------------------------------
\newcommand{\vect}[1]{\begin{matrix}#1\end{matrix}}
\newcommand{\pvect}[1]{\begin{pmatrix}#1\end{pmatrix}}
\newcommand{\bvect}[1]{\begin{bmatrix}#1\end{bmatrix}}
\newcommand{\vvect}[1]{\begin{vmatrix}#1\end{vmatrix}}
\newcommand{\Vvect}[1]{\begin{Vmatrix}#1\end{Vmatrix}}
%------------------------------------------------------------------------------
%       -> antiparticles and particles with a bar in parentheses
%------------------------------------------------------------------------------
\newcommand{\widebar}[1]{%
   \mkern1.5mu\overline{\mkern-1.5mu#1\mkern-1.mu}\mkern1.mu}
\catcode`\@=11 % @ signs are now treated as letters
\newcommand{\parenbar}{\mathpalette\p@renb@r}
\def\p@renb@r#1#2{\vbox{%
  \ifx#1\scriptscriptstyle \dimen@.7em\dimen@ii.2em\else
  \ifx#1\scriptstyle \dimen@.8em\dimen@ii.25em\else
  \dimen@1em\dimen@ii.4em\fi\fi \offinterlineskip
  \ialign{\hfill##\hfill\cr
    \vbox{\hrule width\dimen@ii}\cr
    \noalign{\vskip-.3ex}%
    \hbox to\dimen@{$\mathchar300\hfil\mathchar301$}\cr
    \noalign{\vskip-.3ex}%
    $#1#2$\cr}}}
\catcode`\@=12 % @ signs are no longer letters
\newcommand{\nuan}{\parenbar{\nu}}
\newcommand{\nunubar}{\parenbar{\nu}}
\newcommand{\ppbar}{\parenbar{p}}
\newcommand{\qqbar}{\parenbar{q}}
\newcommand{\pbar}{\widebar{p}}
\newcommand{\nbar}{\widebar{n}}
\newcommand{\qbar}{\widebar{q}}
\newcommand{\dbar}{\widebar{d}}
\newcommand{\ubar}{\widebar{u}}
\newcommand{\sbar}{\widebar{s}}
\newcommand{\cbar}{\widebar{c}}
\newcommand{\bbar}{\widebar{b}}
\newcommand{\tbar}{\widebar{t}}
\newcommand{\nubar}{\widebar{\nu}}
\newcommand{\Dbar}{\widebar{D}}
\newcommand{\ebar}{\widebar{e}}
\newcommand{\Ebar}{\widebar{e}}
\newcommand{\Hebar}{\widebar{\text{He}}}
\newcommand{\Cbar}{\widebar{\text{C}}}
\newcommand{\Abar}{\widebar{\text{A}}}
\newcommand{\Kbar}{\widebar{K}}
\newcommand{\chibar}{\widebar{\chi}}
\newcommand{\LQbar}{\widebar{\rm LQ}}
%------------------------------------------------------------------------------
%       -> small numbers
%------------------------------------------------------------------------------
\newcommand{\zero}{{\scriptscriptstyle 0}}
\newcommand{\sone}{{\scriptscriptstyle 1}}
\newcommand{\stwo}{{\scriptscriptstyle 2}}
\newcommand{\sthr}{{\scriptscriptstyle 3}}
\newcommand{\sfou}{{\scriptscriptstyle 4}}
\newcommand{\sfiv}{{\scriptscriptstyle 5}}
\newcommand{\ssix}{{\scriptscriptstyle 6}}
\newcommand{\ssev}{{\scriptscriptstyle 7}}
\newcommand{\seig}{{\scriptscriptstyle 8}}
\newcommand{\snin}{{\scriptscriptstyle 9}}
\newcommand{\sten}{{\scriptscriptstyle 10}}
\newcommand{\half}{{\scriptscriptstyle 1/2}}
%------------------------------------------------------------------------------
%       -> abbreviations for common math mode symbols
%------------------------------------------------------------------------------
\newcommand{\MSbar}{\hbox{$\overline{\rm MS}$}\xspace}
\newcommand{\UO}{{\rm U}(1)_\sY}
\newcommand{\SUT}{{\rm SU}(2)_\sL}
\newcommand{\SUTH}{{\rm SU}(3)_c}
\newcommand{\SUTUO}{{\rm SU}(2)_\sL\times{\rm U}(1)_\sY}
\newcommand{\SUTSUTUO}{{\rm SU}(3)_c\times{\rm SU}(2)_\sL\times{\rm U}(1)_\sY}
\newcommand{\alsmu}[1]{{\alpha_s(\mu_{#1}^2)}}
\newcommand{\alsmz}{{\alpha_s(M_Z^2)}}
\newcommand{\alsqs}{{\alpha_s(Q^2)}}
\newcommand{\als}{\alpha_s}
\newcommand{\ctwb}{\cos\theta_W}
\newcommand{\ctws}{\cos^2\theta_W}
\newcommand{\diff}{{\rm d}}
\newcommand{\gh}{{\gamma_h}}
\newcommand{\lsq}[1]{{\lambda_{#1}}}
\newcommand{\lsqp}[1]{{\lambda'_{#1}}}
\newcommand{\lsqpp}[1]{{{\lambda''}_{#1}}}
\newcommand{\rnge}{\hbox{$\,\text{--}\,$}}
\newcommand{\sihat}{{\hat\sigma}}
\newcommand{\sitil}{{\tilde\sigma}}
\newcommand{\stwb}{\sin\theta_W}
\newcommand{\stwss}{\sin^4\theta_W}
\newcommand{\stws}{\sin^2\theta_W}
\newcommand{\ta}{{\theta^\ast}}
\newcommand{\tilR}{\tilde R}
\newcommand{\tilS}{\tilde S}
\newcommand{\tilU}{\tilde U}
\newcommand{\tilV}{\tilde V}
\newcommand{\tl}{{\theta_\ell}}
\newcommand{\tw}{\theta_W}
%------------------------------------------------------------------------------
%       -> roman character combinations to be used in math mode, mainly
%          sub- or superscripts
%------------------------------------------------------------------------------
\newcommand{\Born}{{\rm Born}}
\newcommand{\BR}{{\rm BR}}
\newcommand{\CC}{{\rm CC}}
\newcommand{\CI}{{\rm CI}}
\newcommand{\CJ}{{\rm CJ}}
\newcommand{\DA}{{\rm DA}}
\newcommand{\DCA}{{\rm DCA}}
\newcommand{\GRV}{{\rm GRV}}
\newcommand{\IC}{{\rm IC}}
\newcommand{\ISR}{{\rm ISR}}
\newcommand{\IP}{{\rm I$\kern-0.01667em$P}\xspace}
\newcommand{\JB}{{\rm JB}}
\newcommand{\LL}{{\rm LL}}
\newcommand{\LQ}{{\rm LQ}}
\newcommand{\LR}{{\rm LR}}
\newcommand{\MC}{{\rm MC}}
\newcommand{\NC}{{\rm NC}}
\newcommand{\NS}{{\rm NS}}
\newcommand{\QPM}{{\rm QPM}}
\newcommand{\RL}{{\rm RL}}
\newcommand{\RPv}{{{\not R}_P}}
\newcommand{\RR}{{\rm RR}}
\newcommand{\SM}{{\rm SM}}
\newcommand{\bkg}{{\rm bkg}}
\newcommand{\cut}{{\rm cut}}
\newcommand{\data}{{\rm data}}
\newcommand{\sdet}{{\rm det}}
\newcommand{\dof}{{\rm dof}}
\newcommand{\eff}{{\rm eff}}
\newcommand{\elm}{{\rm elm}}
\newcommand{\evt}{{\rm evt}}
\newcommand{\exc}{{\rm exc}}
\newcommand{\fit}{{\rm fit}}
\newcommand{\had}{{\rm had}}
\newcommand{\jet}{{\rm jet}}
\newcommand{\meas}{{\rm meas}}
\newcommand{\miss}{{\rm miss}}
\newcommand{\obs}{{\rm obs}}
\newcommand{\pnt}{{\rm pnt}}
\newcommand{\sL}{{\rm L}}
\newcommand{\sR}{{\rm R}}
\newcommand{\sS}{{\rm S}}
\newcommand{\sT}{{\rm T}}
\newcommand{\sY}{{\rm Y}}
\newcommand{\sca}{{\rm sca}}
\newcommand{\sexp}{{\rm exp}}
\newcommand{\sint}{{\rm int}}
\newcommand{\smin}{{\rm min}}
\newcommand{\smax}{{\rm max}}
\newcommand{\srad}{{\rm rad}}
\newcommand{\sthe}{{\rm the}}
\newcommand{\sys}{{\rm sys}}
\newcommand{\tot}{{\rm tot}}
\newcommand{\true}{{\rm true}}
%------------------------------------------------------------------------------
%       -> some calligraphic symbols and applications
%------------------------------------------------------------------------------
\newcommand{\Cor}{{\cal C}}
\newcommand{\F}{{\cal F}}
\newcommand{\Lumi}{{\cal L}}
\newcommand{\Prob}{{\cal P}}
\newcommand{\ord}[1]{{\cal O}(#1)}
\newcommand{\ordlr}[1]{{\cal O}\left(#1\right)}
%------------------------------------------------------------------------------
%       -> some math symbols (+,-,...) for usage as mathchar's
%------------------------------------------------------------------------------
\mathchardef\qsm=63
\mathchardef\pls=43
\mathchardef\mns=512
\mathchardef\plm=518
\mathchardef\eql=61
\mathchardef\smallleft=300
\mathchardef\smallright=301
\mathchardef\les=316
\mathchardef\gre=318
\mathchardef\leq=532
\mathchardef\grq=533
%------------------------------------------------------------------------------
%       Additional functionality for tables and figures
%       -----------------------------------------------
%       -> alignment tools for tables
%------------------------------------------------------------------------------
\newcommand{\cA}{{\phantom{0}}}
\newcommand{\cB}{{\phantom{00}}}
\newcommand{\cC}{{\phantom{000}}}
\newcommand{\cD}{{\phantom{0000}}}
\newcommand{\cAp}{{\phantom{0.}}}
\newcommand{\cM}{{\phantom{\mns}}}
\newcommand{\cP}{{\phantom{\pls}}}
%------------------------------------------------------------------------------
%       -> comments on figures (allow to add axodraw and picture items)
%------------------------------------------------------------------------------
\catcode`\@=11 % @ signs are now treated as letters
\newcounter{pict@width}
\newcounter{pict@height}
\newlength{\pict@scale}
\setlength{\pict@scale}{0.1mm}
\newcommand{\psfigadd}[4]{%
\setcounter{pict@width}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
\setcounter{pict@height}{1*\ratio{#3+\pict@scale/2}{\pict@scale}}
\setlength{\unitlength}{\pict@scale}
\hbox to #2{\hspace{-\fill}\begin{picture}(\thepict@width,\thepict@height)
\put(0,0){\psfig{figure=#1,width=#2,height=#3,clip=}}
\SetScale{0.283466457}
\SetWidth{1.763889}
{#4}
\end{picture}}
}
\newcounter{pict@widthfst}
\newcounter{pict@widthscd}
\newcounter{pict@widthtot}
\newcommand{\psfigaddtwo}[7]{%
\setcounter{pict@widthfst}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
\setcounter{pict@widthscd}{1*\ratio{#2+#4+\pict@scale/2}{\pict@scale}}
\setcounter{pict@widthtot}{1*\ratio{#2+#4+#6+\pict@scale/2}{\pict@scale}}
\setcounter{pict@height}{1*\ratio{#3+\pict@scale/2}{\pict@scale}}
\setlength{\unitlength}{\pict@scale}
\hbox{\hspace{-\fill}\begin{picture}(\thepict@widthtot,\thepict@height)
\put(0,0){\psfig{figure=#1,width=#2,height=#3,clip=}}
\put(\thepict@widthscd,0){\psfig{figure=#5,width=#6,height=#3,clip=}}
\SetScale{0.283466457}
\SetWidth{1.763889}
{#7}
\end{picture}}
}
\newcommand{\psfigror}[4]{%
\setcounter{pict@width}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
\setcounter{pict@height}{1*\ratio{#3+\pict@scale/2}{\pict@scale}}
\setlength{\unitlength}{\pict@scale}
\hbox{\begin{picture}(\thepict@width,\thepict@height)
\put(0,\thepict@height){\psfig{figure=#1,width=#3,height=#2,clip=,angle=270}}
\SetScale{0.283466457}
\SetWidth{1.763889}
{#4}
\end{picture}}
}
\newcommand{\psfigrol}[4]{%
\setcounter{pict@width}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
\setcounter{pict@height}{1*\ratio{#3+\pict@scale/2}{\pict@scale}}
\setlength{\unitlength}{\pict@scale}
\hbox{\begin{picture}(\thepict@width,\thepict@height)
\put(0,0){\psfig{figure=#1,width=#3,height=#2,clip=,angle=90}}
\SetScale{0.283466457}
\SetWidth{1.763889}
{#4}
\end{picture}}
}
\catcode`\@=12 % @ signs are no longer letters
%------------------------------------------------------------------------------
%       -> narrow figures in list environment
%------------------------------------------------------------------------------
\newlength\listtextwidth
\newcommand{\shiftfloat}[1]{
  \setlength{\listtextwidth}{\textwidth}
  \addtolength{\listtextwidth}{-#1}}
%------------------------------------------------------------------------------
%       -> "none" marker
%------------------------------------------------------------------------------
\newcommand{\none}{\hbox{---}}
%------------------------------------------------------------------------------
%       -> protected commands in captions
%------------------------------------------------------------------------------
\newcommand{\pcite}[1]{{\protect\cite{#1}}}
\newcommand{\pnl}{\protect{\newline}}
%------------------------------------------------------------------------------
%       -> pseudo-footnotes for tables
%------------------------------------------------------------------------------
\catcode`\@=11 % @ signs are now treated as letters
\newlength{\@tabfninsert}
\newlength{\@tabfnwidth}
\newcommand{\tabfootnote}[2]{%
  \setlength{\@tabfninsert}{0.8em}
  \setlength{\@tabfnwidth}{\textwidth}
  \addtolength{\@tabfnwidth}{-\@tabfninsert}
  \addtolength{\@tabfnwidth}{-0.4em}
  \noindent\makebox[\@tabfninsert][r]{\footnotesize$^{#1}$\hfil}\hfill%
  \parbox[t]{\@tabfnwidth}{\footnotesize #2\hfill}}
\catcode`\@=12 % @ signs are no longer letters

zeus_other_def.tex
%------------------------------------------------------------------------------
%       Standard ZEUS text fragments
%       ----------------------------
%       -> references system footnote
%------------------------------------------------------------------------------
\newcommand{\ZcoosysA}{%
The ZEUS coordinate system is a right-handed Cartesian system, with the $Z$
axis pointing in the proton beam direction, referred to as the ``forward
direction'', and the $X$ axis pointing left towards the center of HERA.
The coordinate origin is at the nominal interaction point.\xspace}
\newcommand{\ZcoosysB}{%
The ZEUS coordinate system is a right-handed Cartesian system, with the $Z$
axis pointing in the proton beam direction, referred to as the ``forward
direction'', and the $X$ axis pointing left towards the centre of HERA.
The coordinate origin is at the nominal interaction point.\xspace}
\newcommand{\Zpsrap}{%
The pseudorapidity is defined as $\eta=-\ln\left(\tan\frac{\theta}{2}\right)$,
where the polar angle, $\theta$, is measured with respect to the proton beam
direction.\xspace}
\newcommand{\ZcoosysfnA}{\footnote{\ZcoosysA}}
\newcommand{\ZcoosysfnB}{\footnote{\ZcoosysB}}
\newcommand{\ZcoosysfnAeta}{\footnote{\ZcoosysA\Zpsrap}}
\newcommand{\ZcoosysfnBeta}{\footnote{\ZcoosysB\Zpsrap}}
%------------------------------------------------------------------------------
%       -> introductory sentence for detector description
%------------------------------------------------------------------------------
\newcommand{\Zdetdesc}{%
A detailed description of the ZEUS detector can be found 
elsewhere~\cite{zeus:1993:bluebook}. A brief outline of the 
components that are most relevant for this analysis is given
below.\xspace}
%------------------------------------------------------------------------------
%       -> CTD description (coordinate system footnote is given as argument)
%------------------------------------------------------------------------------
\newcommand{\Zctddesc}[1]{%
Charged particles are tracked in the central tracking detector (CTD)~\citeCTD,
which operates in a magnetic field of $1.43\Tesla$ provided by a thin 
superconducting coil. The CTD consists of 72~cylindrical drift chamber 
layers, organized in 9~superlayers covering the polar-angle#1 region 
\mbox{$15^\circ<\theta<164^\circ$}. The transverse-momentum resolution for
full-length tracks is $\sigma(p_T)/p_T=0.0058p_T\oplus0.0065\oplus0.0014/p_T$,
with $p_T$ in $\Gev$.}
%------------------------------------------------------------------------------
%       -> CAL description
%------------------------------------------------------------------------------
\newcommand{\Zcaldesc}{%
The high-resolution uranium--scintillator calorimeter (CAL)~\citeCAL consists 
of three parts: the forward (FCAL), the barrel (BCAL) and the rear (RCAL)
calorimeters. Each part is subdivided transversely into towers and
longitudinally into one electromagnetic section (EMC) and either one (in RCAL)
or two (in BCAL and FCAL) hadronic sections (HAC). The smallest subdivision of
the calorimeter is called a cell.  The CAL energy resolutions, as measured under
test-beam conditions, are $\sigma(E)/E=0.18/\sqrt{E}$ for electrons and
$\sigma(E)/E=0.35/\sqrt{E}$ for hadrons ($E$ in $\Gev$).}
%------------------------------------------------------------------------------
%       Handy macros, mainly for text mode:
%       -----------------------------------
%       -> unknown marker
%------------------------------------------------------------------------------
\newcommand{\xxx}{\hbox{$\qsm\qsm\qsm$}\xspace}
%------------------------------------------------------------------------------
%       -> D0 acronym
%------------------------------------------------------------------------------
\newcommand{\DO}{{D{\O}}\xspace}
%------------------------------------------------------------------------------
%       -> (anti-)something with correct hyphenation
%------------------------------------------------------------------------------
\newcommand{\Anti}[1]{\hbox{(anti-)}\discretionary{}{}{}#1}
\newcommand{\anti}[1]{(anti\discretionary{-)}{}{)}#1}
%------------------------------------------------------------------------------
%       -> characters for typewriter font (used for http addresses)
%------------------------------------------------------------------------------
\chardef\usc=95
\chardef\til=126
%------------------------------------------------------------------------------
%       -> xdotspace (like xspace, but adds period unless
%          another period follows)
%       -> "nn% C.L."
%------------------------------------------------------------------------------
\catcode`\@=11 % @ signs are now treated as letters
\DeclareRobustCommand\xdotspace{\futurelet\@let@token\@xdotspace}
\def\@xdotspace{%
  \ifx\@let@token.\else
  \ifx\@let@token\bgroup.\else
  \ifx\@let@token\egroup.\else
  \ifx\@let@token\/.\else
  \ifx\@let@token\ .\else
  \ifx\@let@token~.\else
  \ifx\@let@token!.\else
  \ifx\@let@token,.\else
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  \ifx\@let@token;.\else
  \ifx\@let@token?.\else
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   .\space
   \fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi\fi}
\catcode`\@=12 % @ signs are no longer letters
\newcommand{\CL}[1]{$#1\%$~C.L\xdotspace}
%------------------------------------------------------------------------------
%       -> vertical rule of width zero and variable height & depth
%------------------------------------------------------------------------------
\newcommand{\stru}[2]{%
   \relax\ifmmode\hbox{\vrule height#1 depth#2 width0pt}%
   \else\vrule height#1 depth#2 width0pt\fi}
%------------------------------------------------------------------------------
%       -> underline with resonable distance text - line
%------------------------------------------------------------------------------
\newcommand{\uline}[1]{$\underline{\hbox{#1\stru{0.pt}{.485ex}}}$}
%------------------------------------------------------------------------------
%       -> roman numbers (uppercase and lowercase)
%------------------------------------------------------------------------------
\newcommand{\Ronum}[1]{\uppercase\expandafter{\romannumeral#1}}
\newcommand{\ronum}[1]{\expandafter{\romannumeral#1}}
%------------------------------------------------------------------------------
%       -> definition for LaTeX4zeus
%------------------------------------------------------------------------------
\DeclareRobustCommand{\LaTeXZ}{%
  \LaTeX\kern-.05em4\kern-.1em
  {\raisebox{-0.2ex}{$\scriptstyle\text{ZEUS}$}}\xspace}
%------------------------------------------------------------------------------
%       -> define \coll and \etal macros used in
%          LaTeX4zeus bibliography data base
%------------------------------------------------------------------------------
\newcommand{\coll}{Coll.\xspace}
\newcommand{\etal}{et al.\xspace}
%------------------------------------------------------------------------------
%       -> shorthands for equation, figure, table, section references
%          (require standard use of labels: eq-... for equations, cha-...
%           for chapters, sec-... for (sub)sections, tab-... for tables
%           and fig-... for figures)
%------------------------------------------------------------------------------
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\newcommand{\Figand}[2]{Figures~\ref{fig-#1} and~\ref{fig-#2}}
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\newcommand{\Tab}[1]{Table~\ref{tab-#1}}
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\newcommand{\cha}[1]{Chap.~\ref{cha-#1}}
\newcommand{\Cha}[1]{Chapter~\ref{cha-#1}}
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\newcommand{\sectand}[2]{Sects.~\ref{sec-#1} and~\ref{sec-#2}}
\newcommand{\sectto}[2]{Sects.~\ref{sec-#1} to~\ref{sec-#2}}
\newcommand{\Sectand}[2]{Sections~\ref{sec-#1} and~\ref{sec-#2}}
\newcommand{\Sectto}[2]{Sections~\ref{sec-#1} to~\ref{sec-#2}}
%------------------------------------------------------------------------------
%       -> log file message
%------------------------------------------------------------------------------
\newcommand{\LogMess}[1]{\typeout{^^J==> #1^^J}}
%------------------------------------------------------------------------------
%       Some special symbols and settings for math mode:
%       ------------------------------------------------
%       -> redefine mathbf
%------------------------------------------------------------------------------
\DeclareMathAlphabet{\mathbf}{OT1}{cmr}{bx}{sl}
%------------------------------------------------------------------------------
%       -> physics units (eV and multiples)
%------------------------------------------------------------------------------
\newcommand{\eVdist}{\kern-0.06667em}
\newcommand{\Ev}{{\text{e}\eVdist\text{V\/}}}
\newcommand{\Kev}{{\text{ke}\eVdist\text{V\/}}}
\newcommand{\Mev}{{\text{Me}\eVdist\text{V\/}}}
\newcommand{\Gev}{{\text{Ge}\eVdist\text{V\/}}}
\newcommand{\Tev}{{\text{Te}\eVdist\text{V\/}}}
\newcommand{\ev}{{\,\text{e}\eVdist\text{V\/}}}
\newcommand{\kev}{{\,\text{ke}\eVdist\text{V\/}}}
\newcommand{\mev}{{\,\text{Me}\eVdist\text{V\/}}}
\newcommand{\gev}{{\,\text{Ge}\eVdist\text{V\/}}}
\newcommand{\tev}{{\,\text{Te}\eVdist\text{V\/}}}
%------------------------------------------------------------------------------
%       -> various other units
%------------------------------------------------------------------------------
\newcommand{\mb}{\,\text{mb}}
\newcommand{\mub}{\,\upmu\text{b}}
\newcommand{\nb}{\,\text{nb}}
\newcommand{\pb}{\,\text{pb}}
\newcommand{\fb}{\,\text{fb}}
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\newcommand{\mbi}{\,\text{mb}^{-1}}
\newcommand{\nbi}{\,\text{nb}^{-1}}
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\newcommand{\mg}{\,\text{mg}}
\newcommand{\kg}{\,\text{kg}}
\newcommand{\Tesla}{\,\text{T}}
\newcommand{\Kelvin}{\,\text{K}}
%------------------------------------------------------------------------------
%       -> additional operators
%------------------------------------------------------------------------------
\newcommand{\odiv}{{\operatorname*{div}}}
\newcommand{\ograd}{{\operatorname*{grad}}}
\newcommand{\orot}{{\operatorname*{rot}}}
\newcommand{\odiag}{{\operatorname*{diag}}}
\newcommand{\ocov}{{\operatorname*{cov}}}
%------------------------------------------------------------------------------
%       -> fraction with slash instead of ratio bar
%------------------------------------------------------------------------------
\newcommand{\slashfrac}[2]{%
  \raisebox{0.5ex}{\ensuremath #1}\kern-0.12em/\kern-0.08em
  \raisebox{-.8ex}{\ensuremath #2}}
%------------------------------------------------------------------------------
%       -> shorthand for "integral limits below and above"
%------------------------------------------------------------------------------
\newcommand{\intl}{\int\limits}
\newcommand{\ointl}{\oint\limits}
%------------------------------------------------------------------------------
%       -> d'Alembert operator
%------------------------------------------------------------------------------
\newcommand{\sqr}[3]{%
    {\vcenter{\hrule height.#3ex\hbox{\vrule width.#2ex height#1ex
     \kern#1ex\vrule width.#3ex}\hrule height.#2ex}}}
\newcommand{\dalem}{\mathchoice\sqr{1.3}{08}{24}\sqr{1.4}{08}{24}
                    \sqr{1.15}{07}{21}\sqr{1.0}{06}{18}\,}
%------------------------------------------------------------------------------
%       -> vectors and matrices
%------------------------------------------------------------------------------
\newcommand{\vect}[1]{\begin{matrix}#1\end{matrix}}
\newcommand{\pvect}[1]{\begin{pmatrix}#1\end{pmatrix}}
\newcommand{\bvect}[1]{\begin{bmatrix}#1\end{bmatrix}}
\newcommand{\vvect}[1]{\begin{vmatrix}#1\end{vmatrix}}
\newcommand{\Vvect}[1]{\begin{Vmatrix}#1\end{Vmatrix}}
%------------------------------------------------------------------------------
%       -> antiparticles and particles with a bar in parentheses
%------------------------------------------------------------------------------
\newcommand{\widebar}[1]{%
   \mkern1.5mu\overline{\mkern-1.5mu#1\mkern-1.mu}\mkern1.mu}
\catcode`\@=11 % @ signs are now treated as letters
\newcommand{\parenbar}{\mathpalette\p@renb@r}
\def\p@renb@r#1#2{\vbox{%
  \ifx#1\scriptscriptstyle \dimen@.7em\dimen@ii.2em\else
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    \noalign{\vskip-.3ex}%
    $#1#2$\cr}}}
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\newcommand{\nunubar}{\parenbar{\nu}}
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\newcommand{\Abar}{\widebar{\text{A}}}
\newcommand{\Kbar}{\widebar{K}}
\newcommand{\chibar}{\widebar{\chi}}
\newcommand{\LQbar}{\widebar{\rm LQ}}
%------------------------------------------------------------------------------
%       -> small numbers
%------------------------------------------------------------------------------
\newcommand{\zero}{{\scriptscriptstyle 0}}
\newcommand{\sone}{{\scriptscriptstyle 1}}
\newcommand{\stwo}{{\scriptscriptstyle 2}}
\newcommand{\sthr}{{\scriptscriptstyle 3}}
\newcommand{\sfou}{{\scriptscriptstyle 4}}
\newcommand{\sfiv}{{\scriptscriptstyle 5}}
\newcommand{\ssix}{{\scriptscriptstyle 6}}
\newcommand{\ssev}{{\scriptscriptstyle 7}}
\newcommand{\seig}{{\scriptscriptstyle 8}}
\newcommand{\snin}{{\scriptscriptstyle 9}}
\newcommand{\sten}{{\scriptscriptstyle 10}}
\newcommand{\half}{{\scriptscriptstyle 1/2}}
%------------------------------------------------------------------------------
%       -> abbreviations for common math mode symbols
%------------------------------------------------------------------------------
\newcommand{\MSbar}{\hbox{$\overline{\rm MS}$}\xspace}
\newcommand{\UO}{{\rm U}(1)_\sY}
\newcommand{\SUT}{{\rm SU}(2)_\sL}
\newcommand{\SUTH}{{\rm SU}(3)_c}
\newcommand{\SUTUO}{{\rm SU}(2)_\sL\times{\rm U}(1)_\sY}
\newcommand{\SUTSUTUO}{{\rm SU}(3)_c\times{\rm SU}(2)_\sL\times{\rm U}(1)_\sY}
\newcommand{\alsmu}[1]{{\alpha_s(\mu_{#1}^2)}}
\newcommand{\alsmz}{{\alpha_s(M_Z^2)}}
\newcommand{\alsqs}{{\alpha_s(Q^2)}}
\newcommand{\als}{\alpha_s}
\newcommand{\ctwb}{\cos\theta_W}
\newcommand{\ctws}{\cos^2\theta_W}
\newcommand{\diff}{{\rm d}}
\newcommand{\gh}{{\gamma_h}}
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\newcommand{\lsqp}[1]{{\lambda'_{#1}}}
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\newcommand{\rnge}{\hbox{$\,\text{--}\,$}}
\newcommand{\sihat}{{\hat\sigma}}
\newcommand{\sitil}{{\tilde\sigma}}
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\newcommand{\tilS}{\tilde S}
\newcommand{\tilU}{\tilde U}
\newcommand{\tilV}{\tilde V}
\newcommand{\tl}{{\theta_\ell}}
\newcommand{\tw}{\theta_W}
%------------------------------------------------------------------------------
%       -> roman character combinations to be used in math mode, mainly
%          sub- or superscripts
%------------------------------------------------------------------------------
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\newcommand{\tot}{{\rm tot}}
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%------------------------------------------------------------------------------
%       -> some calligraphic symbols and applications
%------------------------------------------------------------------------------
\newcommand{\Cor}{{\cal C}}
\newcommand{\F}{{\cal F}}
\newcommand{\Lumi}{{\cal L}}
\newcommand{\Prob}{{\cal P}}
\newcommand{\ord}[1]{{\cal O}(#1)}
\newcommand{\ordlr}[1]{{\cal O}\left(#1\right)}
%------------------------------------------------------------------------------
%       -> some math symbols (+,-,...) for usage as mathchar's
%------------------------------------------------------------------------------
\mathchardef\qsm=63
\mathchardef\pls=43
\mathchardef\mns=512
\mathchardef\plm=518
\mathchardef\eql=61
\mathchardef\smallleft=300
\mathchardef\smallright=301
\mathchardef\les=316
\mathchardef\gre=318
\mathchardef\leq=532
\mathchardef\grq=533
%------------------------------------------------------------------------------
%       Additional functionality for tables and figures
%       -----------------------------------------------
%       -> alignment tools for tables
%------------------------------------------------------------------------------
\newcommand{\cA}{{\phantom{0}}}
\newcommand{\cB}{{\phantom{00}}}
\newcommand{\cC}{{\phantom{000}}}
\newcommand{\cD}{{\phantom{0000}}}
\newcommand{\cAp}{{\phantom{0.}}}
\newcommand{\cM}{{\phantom{\mns}}}
\newcommand{\cP}{{\phantom{\pls}}}
%------------------------------------------------------------------------------
%       -> comments on figures (allow to add axodraw and picture items)
%------------------------------------------------------------------------------
\catcode`\@=11 % @ signs are now treated as letters
\newcounter{pict@width}
\newcounter{pict@height}
\newlength{\pict@scale}
\setlength{\pict@scale}{0.1mm}
\newcommand{\psfigadd}[4]{%
\setcounter{pict@width}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
\setcounter{pict@height}{1*\ratio{#3+\pict@scale/2}{\pict@scale}}
\setlength{\unitlength}{\pict@scale}
\hbox to #2{\hspace{-\fill}\begin{picture}(\thepict@width,\thepict@height)
\put(0,0){\psfig{figure=#1,width=#2,height=#3,clip=}}
\SetScale{0.283466457}
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{#4}
\end{picture}}
}
\newcounter{pict@widthfst}
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\newcounter{pict@widthtot}
\newcommand{\psfigaddtwo}[7]{%
\setcounter{pict@widthfst}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
\setcounter{pict@widthscd}{1*\ratio{#2+#4+\pict@scale/2}{\pict@scale}}
\setcounter{pict@widthtot}{1*\ratio{#2+#4+#6+\pict@scale/2}{\pict@scale}}
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\put(0,0){\psfig{figure=#1,width=#2,height=#3,clip=}}
\put(\thepict@widthscd,0){\psfig{figure=#5,width=#6,height=#3,clip=}}
\SetScale{0.283466457}
\SetWidth{1.763889}
{#7}
\end{picture}}
}
\newcommand{\psfigror}[4]{%
\setcounter{pict@width}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
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\setlength{\unitlength}{\pict@scale}
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\put(0,\thepict@height){\psfig{figure=#1,width=#3,height=#2,clip=,angle=270}}
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{#4}
\end{picture}}
}
\newcommand{\psfigrol}[4]{%
\setcounter{pict@width}{1*\ratio{#2+\pict@scale/2}{\pict@scale}}
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\setlength{\unitlength}{\pict@scale}
\hbox{\begin{picture}(\thepict@width,\thepict@height)
\put(0,0){\psfig{figure=#1,width=#3,height=#2,clip=,angle=90}}
\SetScale{0.283466457}
\SetWidth{1.763889}
{#4}
\end{picture}}
}
\catcode`\@=12 % @ signs are no longer letters
%------------------------------------------------------------------------------
%       -> narrow figures in list environment
%------------------------------------------------------------------------------
\newlength\listtextwidth
\newcommand{\shiftfloat}[1]{
  \setlength{\listtextwidth}{\textwidth}
  \addtolength{\listtextwidth}{-#1}}
%------------------------------------------------------------------------------
%       -> "none" marker
%------------------------------------------------------------------------------
\newcommand{\none}{\hbox{---}}
%------------------------------------------------------------------------------
%       -> protected commands in captions
%------------------------------------------------------------------------------
\newcommand{\pcite}[1]{{\protect\cite{#1}}}
\newcommand{\pnl}{\protect{\newline}}
%------------------------------------------------------------------------------
%       -> pseudo-footnotes for tables
%------------------------------------------------------------------------------
\catcode`\@=11 % @ signs are now treated as letters
\newlength{\@tabfninsert}
\newlength{\@tabfnwidth}
\newcommand{\tabfootnote}[2]{%
  \setlength{\@tabfninsert}{0.8em}
  \setlength{\@tabfnwidth}{\textwidth}
  \addtolength{\@tabfnwidth}{-\@tabfninsert}
  \addtolength{\@tabfnwidth}{-0.4em}
  \noindent\makebox[\@tabfninsert][r]{\footnotesize$^{#1}$\hfil}\hfill%
  \parbox[t]{\@tabfnwidth}{\footnotesize #2\hfill}}
\catcode`\@=12 % @ signs are no longer letters

zconf-ref.tex
{
\def\bibname{\Large\bf References}
\def\refname{\Large\bf References}
\pagestyle{plain}
\ifzeusbst
  \bibliographystyle{./BiBTeX/bst/l4z_default}
\fi
\ifzdrftbst
  \bibliographystyle{./BiBTeX/bst/l4z_draft}
\fi
\ifzbstepj
  \bibliographystyle{./BiBTeX/bst/l4z_epj}
\fi
\ifzbstnp
  \bibliographystyle{./BiBTeX/bst/l4z_np}
\fi
\ifzbstpl
  \bibliographystyle{./BiBTeX/bst/l4z_pl}
\fi
{\raggedright
\bibliography{<comma-separated list of bib files>}}
}
\vfill\eject

zconf.tex
%==============================================================================
%
%       <Insert paper title here>
%       _________________________
%
%      Please consult the WWW LaTeX4zeus documentation for explanations
%      and usage information related to this LaTeX setup:
%
%      http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/html/l4z.html
%
%==============================================================================
%
%       Use 'zeus_paper' class
%       ----------------------
%
%       Options specific to zeus_paper.cls:
%
%       Paper type (mutually exclusive):
%       -> zpreprint    - DESY preprint (always 12pt)
%       -> zdraft       - draft paper (always 12pt)
%       -> zconf        - paper contributed to a conference (always 12pt)
%       -> znote        - ZEUS note (default=12pt, 10pt or 11pt can be selected)
%
%       Bibliography style (mutually exclusive):
%       ->zbstdefault   - standard ZEUS BiBTeX style file (default)    
%       ->zbstdraft     - standard ZEUS BiBTeX style file for drafts
%                         (default for drafts)   
%       ->zbstepj       - ZEUS BiBTeX style file for Eur.J.Phys papers 
%       ->zbstnp        - ZEUS BiBTeX style file for Nucl.Phys. papers 
%       ->zbstpl        - ZEUS BiBTeX style file for Phys.Lett. papers 
%
\documentclass[zconf,zbstdefault]{./LaTeX/zeus/zeus_paper}
%
%       Use English language 
%       --------------------
%       <change "english" -> "american" to conform to American standards>
%
\usepackage[english]{babel}
%
%       Default auxiliary packages
%       --------------------------
%
%       The following packages are automatically loaded by zeus_paper.cls:
%       -> rotating     - to rotate boxes, pictures etc.
%       -> epsfig       - to include (encapsulated) postscript files
%       -> amsmath      - to use the AMS extended math package
%                         [centertags] -> equation numbers vertically centered
%                                         in split enevironment
%                         [intlimits]  -> integral limits on bottom and top
%                                         of integral sign
%       -> amssymb      - to obtain additional math symbols in AMS fonts
%       -> amscd        - to obtain AMS flow chart utilities
%       -> array        - to obtain additional tabular functionality
%       -> multirow     - for multirow-entries in tables
%       -> supertabular - for multi-page tables
%       -> dcolumn      - decimal-point aligned colums in tables
%       -> xspace       - to add empty space after commands
%       -> axodraw      - to draw Feynman diagrams (by J.A.M.Vermaseren)
%       -> upgreek      - provide upright greek letters
%       -> color        - color support
%       -> colors       - some color definitions
%       -> calc         - enhanced calculus in LaTeX macros
%       -> ifthen       - enhance logical structures in LaTeX macros
%       -> cite         - for multiple citations like [1-4] instead of [1,2,3,4]
%       -> mcite        - for multiple citations in one reference
%          
%       <Here you can include additional auxiliary packages:>
%       -----------------------------------------------------
%
%       use \usepackage[options]{package name}
%
%       File './LaTeX/zeus/zeus_def.tex' contains the standard set 
%                                        of TeX definitions etc.
%
\input ./LaTeX/zeus/zeus_def.tex
%
%       File './LaTeX/user/def.tex' contains additional user definitions
%
\input ./LaTeX/user/def.tex
%
%       File 'zconf-cit.tex' contains citation definitions
%
\input  zconf-cit.tex
%==============================================================================
%       Here comes the document.
%==============================================================================
\includeonly{zconf-tit,zconf-txt,zconf-ref}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\include{zconf-tit}
%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
\include{zconf-txt}
%------------------------------------------------------------------------------
%       Bibliography
%------------------------------------------------------------------------------
\include{zconf-ref}
%
%       ... that's it
%
\end{document}

zconf-tit.tex
\prepnum{DESY--00--NNN}

\title{
Search for a Better Life\\
in Deep Inelastic $\mathbf{e^+p\to e^+X}$ Scattering\\
at HERA
}                                                       
                    
\author{ZEUS Collaboration}
\draftversion{0.1}
\date{15.\ May 2000}

\confname{XXX$^{\rm th}$ International Conference on High Energy Physics}
\confplacedate{Osaka, Japan, July 27 -- August 2, 2000}
\confsession{Plenary Session: M\\Parallel Session: K}
\confabsnum{9999}

\abstract{
In a search for a better life beyond the Standard Model, various hypotheses have
been tested using the high--$Q^2$, deep inelastic neutral--current $e^+p$
scattering data collected with the ZEUS detector at HERA.  The data correspond
to an integrated luminosity of $47.7\pbi$ of $e^+p$ interactions at $300\gev$
center-of-mass energy. No significant evidence for holidays has been found.
Lower limits at the $95\%$ confidence level are set on the average monthly
working time of a physicist.
}

\makezeustitle

zconf-txt.tex
\pagenumbering{arabic} 
\pagestyle{plain}
% ----------------------------------------------------------------------------
%       Introduction
% ----------------------------------------------------------------------------
\section{Introduction}
\label{sec-int}

Here comes your text and futher sections and subsections \dots
At some place you might in particular like to introduce the 
CTD \citeCTD and the ZEUS calorimeter \citeCAL.
\vfill\eject

zconf-cit.tex
%==============================================================================
%	Some definitions of citations
%==============================================================================
%------------------------------------------------------------------------------
%	-> CTD
%------------------------------------------------------------------------------
\def\citeCTD{{\cite{%
nim:a279:290,*npps:b32:181,*nim:a338:254%
}}\xspace}
%------------------------------------------------------------------------------
%	-> CAL
%------------------------------------------------------------------------------
\def\citeCAL{{\cite{%
nim:a309:77,*nim:a309:101,*nim:a321:356,*nim:a336:23%
}}\xspace}

znote.tex
%==============================================================================
%
%       <Insert ZEUS note title here>
%       _____________________________
%
%      Please consult the WWW LaTeX4zeus documentation for explanations
%      and usage information related to this LaTeX setup:
%
%      http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/html/l4z.html
%
%==============================================================================
%
%       Use 'zeus_paper' class
%       ----------------------
%
%       Options specific to zeus_paper.cls:
%
%       Paper type (mutually exclusive):
%       -> zpreprint    - DESY preprint (always 12pt)
%       -> zdraft       - draft paper (always 12pt)
%       -> zconf        - paper contributed to a conference (always 12pt)
%       -> znote        - ZEUS note (default=12pt, 10pt or 11pt can be selected)
%
%       Bibliography style (mutually exclusive):
%       ->zbstdefault   - standard ZEUS BiBTeX style file (default)    
%       ->zbstdraft     - standard ZEUS BiBTeX style file for drafts
%                         (default for drafts)   
%       ->zbstepj       - ZEUS BiBTeX style file for Eur.J.Phys papers 
%       ->zbstnp        - ZEUS BiBTeX style file for Nucl.Phys. papers 
%       ->zbstpl        - ZEUS BiBTeX style file for Phys.Lett. papers 
%
\documentclass[znote,zbstdefault]{./LaTeX/zeus/zeus_paper}
%
%       Use English language 
%       --------------------
%       (change "english" -> "american" to conform to American standards)
%
\usepackage[english]{babel}
%
%       Default auxiliary packages
%       --------------------------
%
%       The following packages are automatically loaded by zeus_paper.cls:
%       -> rotating     - to rotate boxes, pictures etc.
%       -> epsfig       - to include (encapsulated) postscript files
%       -> amsmath      - to use the AMS extended math package
%                         [centertags] -> equation numbers vertically centered
%                                         in split enevironment
%                         [intlimits]  -> integral limits on bottom and top
%                                         of integral sign
%       -> amssymb      - to obtain additional math symbols in AMS fonts
%       -> amscd        - to obtain AMS flow chart utilities
%       -> array        - to obtain additional tabular functionality
%       -> multirow     - for multirow-entries in tables
%       -> supertabular - for multi-page tables
%       -> dcolumn      - decimal-point aligned colums in tables
%       -> xspace       - to add empty space after commands
%       -> axodraw      - to draw Feynman diagrams (by J.A.M.Vermaseren)
%       -> upgreek      - provide upright greek letters
%       -> color        - color support
%       -> colors       - some color definitions
%       -> calc         - enhanced calculus in LaTeX macros
%       -> ifthen       - enhance logical structures in LaTeX macros
%       -> cite         - for multiple citations like [1-4] instead of [1,2,3,4]
%       -> mcite        - for multiple citations in one reference
%          
%       <Here you can include additional auxiliary packages:>
%       -----------------------------------------------------
%
%       use \usepackage[options]{package name}
%
%       File './LaTeX/zeus/zeus_def.tex' contains the standard set 
%                                        of TeX definitions etc.
%
\input ./LaTeX/zeus/zeus_def.tex
%
%       File './LaTeX/user/def.tex' contains additional user definitions
%
\input ./LaTeX/user/def.tex
%
%       File 'zdraft-cit.tex' contains citation definitions
%
\input  znote-cit.tex
%==============================================================================
%       Here comes the document.
%==============================================================================
\includeonly{znote-tit,znote-txt,znote-ref,znote-tab,znote-fig}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\include{znote-tit}
%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
\include{znote-txt}
%------------------------------------------------------------------------------
%       Bibliography
%------------------------------------------------------------------------------
\include{znote-ref}
%------------------------------------------------------------------------------
%       Tables
%------------------------------------------------------------------------------
\include{znote-tab}
%------------------------------------------------------------------------------
%       Figures
%------------------------------------------------------------------------------
\include{znote-fig}
%
%       ... that's it
%
\end{document}

znote-cit.tex
%==============================================================================
%	Some definitions of citations
%==============================================================================
%------------------------------------------------------------------------------
%	-> CTD
%------------------------------------------------------------------------------
\def\citeCTD{{\cite{%
nim:a279:290,*npps:b32:181,*nim:a338:254%
}}\xspace}
%------------------------------------------------------------------------------
%	-> CAL
%------------------------------------------------------------------------------
\def\citeCAL{{\cite{%
nim:a309:77,*nim:a309:101,*nim:a321:356,*nim:a336:23%
}}\xspace}

znote-ref.tex
{
\def\bibname{\Large\bf References}
\def\refname{\Large\bf References}
\pagestyle{plain}
\ifzeusbst
  \bibliographystyle{./BiBTeX/bst/l4z_default}
\fi
\ifzdrftbst
  \bibliographystyle{./BiBTeX/bst/l4z_draft}
\fi
\ifzbstepj
  \bibliographystyle{./BiBTeX/bst/l4z_epj}
\fi
\ifzbstnp
  \bibliographystyle{./BiBTeX/bst/l4z_np}
\fi
\ifzbstpl
  \bibliographystyle{./BiBTeX/bst/l4z_pl}
\fi
{\raggedright
\bibliography{<comma-separated list of bib files>}}
}
\vfill\eject

znote-tab.tex
%-------------------------------------------------------------------------------
%       An example table
%-------------------------------------------------------------------------------
\begin{table}[p]
\begin{center}
\begin{tabular}{||c|rrrr|rrrr||}
\hline
Label & $\eta^u_{LL}$ & $\eta^u_{LR}$ & $\eta^u_{RL}$ & $\eta^u_{RR}$ & 
        $\eta^d_{LL}$ & $\eta^d_{LR}$ & $\eta^d_{RL}$ & $\eta^d_{RR}$ \\ 
\hline\hline
VV&  $+1$&$+1$&$+1$&$+1$&
     $+1$&$+1$&$+1$&$+1$ \\
AA&  $+1$&$-1$&$-1$&$+1$&
     $+1$&$-1$&$-1$&$+1$ \\
VA&  $+1$&$-1$&$+1$&$-1$&
     $+1$&$-1$&$+1$&$-1$ \\
X1&  $+1$&$-1$&$ 0$&$ 0$&
     $+1$&$-1$&$ 0$&$ 0$ \\
X2&  $+1$&$ 0$&$+1$&$ 0$&
     $+1$&$ 0$&$+1$&$ 0$ \\
X3&  $+1$&$ 0$&$ 0$&$+1$&
     $+1$&$ 0$&$ 0$&$+1$ \\
X4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$+1$&$+1$&$ 0$ \\
X5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$+1$&$ 0$&$+1$ \\
X6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$+1$&$-1$ \\
U1&  $+1$&$-1$&$ 0$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U2&  $+1$&$ 0$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U3&  $+1$&$ 0$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
\hline
\end{tabular}
\caption{The 30 scenarios for a better life considered in this paper.
         Each row of this table corresponds to two different scenarios for
         overall interference signs $\epsilon=+1$ and $\epsilon=-1$, 
         respectively.}
  \label{tab-models}
\end{center}
\end{table}

znote-fig.tex
%-------------------------------------------------------------------------------
%       Results
%-------------------------------------------------------------------------------
\begin{figure}[p]
\vfill
\begin{center}
\framebox[13.cm]{\rule{0.pt}{10.cm}}
\end{center}
\caption{
Life beyond the Standard Model.}
\label{fig-contfey}
\vfill
\end{figure}

znote-tit.tex
\prepnum{ZEUS--00--NNN}

\title{
Calibration of the Mood of the Operators\\
in the ZEUS running 1999/2000
}                                                       
                    
\author{Your name\\
        {\small\it your email}\\[3.mm]
        Your institution\\
        {\it address}\\
}
\date{15.\ November 2000}

\abstract{
In previous years, strong dependences of data taking efficiencies and 
physics results on the mood of the ZEUS shift crew have been observed.
We report on an attempt to automatically monitor and adjust the 
relevant parameters by supplying moderate doses of beer. It can be shown 
that this approach stabilizes the situation. However, remaining dependences,
in particular on the moon phase, are still to be corrected for.
}

\makezeustitle

znote-txt.tex
\pagenumbering{arabic} 
\pagestyle{plain}
% ----------------------------------------------------------------------------
%       Introduction
% ----------------------------------------------------------------------------
\section{Introduction}
\label{sec-int}

Here comes your text and futher sections and subsections \dots
At some place you might in particular like to introduce the 
CTD \citeCTD and the ZEUS calorimeter \citeCAL.
\vfill\eject

zprep-txt.tex
\pagenumbering{arabic} 
\pagestyle{plain}
% ----------------------------------------------------------------------------
%       Introduction
% ----------------------------------------------------------------------------
\section{Introduction}
\label{sec-int}

Here comes your introductory text.

% ----------------------------------------------------------------------------
%       Experimental set-up
% ----------------------------------------------------------------------------
\section{Experimental set-up}
\label{sec-exp}

Here you might want to describe your data samples and the detctor. In
particular, you may use some of the text fragments provided as \LaTeXZ
macros.

\Zdetdesc

\Zctddesc\ZcoosysfnBeta

\Zcaldesc

\vfill\eject

zprep-aut.tex
%=================================================================== 
%
%  This file will be replaced with the "official" author
%  list which is created for each ZEUS paper individually.
%
%===================================================================== 
{
\pagenumbering{Roman} 

\begin{center} 
{\Large  The ZOOPS Collaboration}
\end{center}

{\raggedright
  F.~Author$^{1}$,
  A.~Nother,
  X.~Whoever\\
 {\it Absolutely Non-Existing Institute of Nothing, Nowhere, Country}~$^{a}$ 
}

\par\filbreak
\begin{supertabular}[h]{rp{14cm}}
$^{\ 1}$ & now visiting a scientist next door\\ 
\end{supertabular}

\begin{tabular}[h]{rp{14cm}}
$^{a}$ &  supported by the National Council of Nonsense (NCNS)\\ 
\end{tabular} 
}

\clearpage

zprep-cit.tex
%==============================================================================
%	Some definitions of citations
%==============================================================================
%------------------------------------------------------------------------------
%	-> CTD
%------------------------------------------------------------------------------
\def\citeCTD{{\cite{%
nim:a279:290,*npps:b32:181,*nim:a338:254%
}}\xspace}
%------------------------------------------------------------------------------
%	-> CAL
%------------------------------------------------------------------------------
\def\citeCAL{{\cite{%
nim:a309:77,*nim:a309:101,*nim:a321:356,*nim:a336:23%
}}\xspace}

zprep-ref.tex
{
\def\bibname{\Large\bf References}
\def\refname{\Large\bf References}
\pagestyle{plain}
\ifzeusbst
  \bibliographystyle{./BiBTeX/bst/l4z_default}
\fi
\ifzdrftbst
  \bibliographystyle{./BiBTeX/bst/l4z_draft}
\fi
\ifzbstepj
  \bibliographystyle{./BiBTeX/bst/l4z_epj}
\fi
\ifzbstnp
  \bibliographystyle{./BiBTeX/bst/l4z_np}
\fi
\ifzbstpl
  \bibliographystyle{./BiBTeX/bst/l4z_pl}
\fi
{\raggedright
\bibliography{<comma-separated list of bib files>}}
}
\vfill\eject

zprep.tex
%==============================================================================
%
%       <Insert paper title here>
%       _________________________
%
%      Please consult the WWW LaTeX4zeus documentation for explanations
%      and usage information related to this LaTeX setup:
%
%      http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/html/l4z.html
%
%==============================================================================
%
%       Use 'zeus_paper' class
%       ----------------------
%
%       Options specific to zeus_paper.cls:
%
%       Paper type (mutually exclusive):
%       -> zpreprint    - DESY preprint (always 12pt)
%       -> zdraft       - draft paper (always 12pt)
%       -> zconf        - paper contributed to a conference (always 12pt)
%       -> znote        - ZEUS note (default=12pt, 10pt or 11pt can be selected)
%
%       Bibliography style (mutually exclusive):
%       ->zbstdefault   - standard ZEUS BiBTeX style file (default)    
%       ->zbstdraft     - standard ZEUS BiBTeX style file for drafts
%                         (default for drafts)   
%       ->zbstepj       - ZEUS BiBTeX style file for Eur.J.Phys papers 
%       ->zbstnp        - ZEUS BiBTeX style file for Nucl.Phys. papers 
%       ->zbstpl        - ZEUS BiBTeX style file for Phys.Lett. papers 
%
\documentclass[zpreprint,zbstdefault]{./LaTeX/zeus/zeus_paper}
%
%       Use English language 
%       --------------------
%       <change "english" -> "american" to conform to American standards>
%
\usepackage[english]{babel}
%
%       Default auxiliary packages
%       --------------------------
%
%       The following packages are automatically loaded by zeus_paper.cls:
%       -> rotating     - to rotate boxes, pictures etc.
%       -> epsfig       - to include (encapsulated) postscript files
%       -> amsmath      - to use the AMS extended math package
%                         [centertags] -> equation numbers vertically centered
%                                         in split enevironment
%                         [intlimits]  -> integral limits on bottom and top
%                                         of integral sign
%       -> amssymb      - to obtain additional math symbols in AMS fonts
%       -> amscd        - to obtain AMS flow chart utilities
%       -> array        - to obtain additional tabular functionality
%       -> multirow     - for multirow-entries in tables
%       -> supertabular - for multi-page tables
%       -> dcolumn      - decimal-point aligned colums in tables
%       -> xspace       - to add empty space after commands
%       -> axodraw      - to draw Feynman diagrams (by J.A.M.Vermaseren)
%       -> upgreek      - provide upright greek letters
%       -> color        - color support
%       -> colors       - some color definitions
%       -> calc         - enhanced calculus in LaTeX macros
%       -> ifthen       - enhance logical structures in LaTeX macros
%       -> cite         - for multiple citations like [1-4] instead of [1,2,3,4]
%       -> mcite        - for multiple citations in one reference
%          
%       <Here you can include additional auxiliary packages:>
%       -----------------------------------------------------
%
%       use \usepackage[options]{package name}
%
%       File './LaTeX/zeus/zeus_def.tex' contains the standard set 
%                                        of TeX definitions etc.
%
\input ./LaTeX/zeus/zeus_def.tex
%
%       File './LaTeX/user/def.tex' contains additional user definitions
%
\input ./LaTeX/user/def.tex
%
%       File 'zdraft-cit.tex' contains citation definitions
%
\input  zprep-cit.tex
%==============================================================================
%       Here comes the document.
%==============================================================================
\includeonly{zprep-tit,zprep-aut,zprep-txt,zprep-ref,zprep-tab,zprep-fig}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\include{zprep-tit}
%------------------------------------------------------------------------------
%       Authors
%------------------------------------------------------------------------------
\include{zprep-aut}
%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
\include{zprep-txt}
%------------------------------------------------------------------------------
%       Bibliography
%------------------------------------------------------------------------------
\include{zprep-ref}
%------------------------------------------------------------------------------
%       Tables
%------------------------------------------------------------------------------
\include{zprep-tab}
%------------------------------------------------------------------------------
%       Figures
%------------------------------------------------------------------------------
\include{zprep-fig}
%
%       ... that's it
%
\end{document}

zprep-tab.tex
%-------------------------------------------------------------------------------
%       An example table
%-------------------------------------------------------------------------------
\begin{table}[p]
\begin{center}
\begin{tabular}{||c|rrrr|rrrr||}
\hline
Label & $\eta^u_{LL}$ & $\eta^u_{LR}$ & $\eta^u_{RL}$ & $\eta^u_{RR}$ & 
        $\eta^d_{LL}$ & $\eta^d_{LR}$ & $\eta^d_{RL}$ & $\eta^d_{RR}$ \\ 
\hline\hline
VV&  $+1$&$+1$&$+1$&$+1$&
     $+1$&$+1$&$+1$&$+1$ \\
AA&  $+1$&$-1$&$-1$&$+1$&
     $+1$&$-1$&$-1$&$+1$ \\
VA&  $+1$&$-1$&$+1$&$-1$&
     $+1$&$-1$&$+1$&$-1$ \\
X1&  $+1$&$-1$&$ 0$&$ 0$&
     $+1$&$-1$&$ 0$&$ 0$ \\
X2&  $+1$&$ 0$&$+1$&$ 0$&
     $+1$&$ 0$&$+1$&$ 0$ \\
X3&  $+1$&$ 0$&$ 0$&$+1$&
     $+1$&$ 0$&$ 0$&$+1$ \\
X4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$+1$&$+1$&$ 0$ \\
X5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$+1$&$ 0$&$+1$ \\
X6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$+1$&$-1$ \\
U1&  $+1$&$-1$&$ 0$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U2&  $+1$&$ 0$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U3&  $+1$&$ 0$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
\hline
\end{tabular}
\caption{The 30 scenarios for a better life considered in this paper.
         Each row of this table corresponds to two different scenarios for
         overall interference signs $\epsilon=+1$ and $\epsilon=-1$, 
         respectively.}
  \label{tab-models}
\end{center}
\end{table}

zprep-fig.tex
%-------------------------------------------------------------------------------
%       Results
%-------------------------------------------------------------------------------
\begin{figure}[p]
\vfill
\begin{center}
\framebox[13.cm]{\rule{0.pt}{10.cm}}
\end{center}
\caption{
Life beyond the Standard Model.}
\label{fig-contfey}
\vfill
\end{figure}

zprep-tit.tex
\prepnum{DESY--00--NNN}

\title{
Search for a Better Life\\
in Deep Inelastic $\mathbf{e^+p\to e^+X}$ Scattering\\
at HERA
}                                                       
                    
\author{ZEUS Collaboration}
\date{15.\ May 2000}

\abstract{
In a search for a better life beyond the Standard Model, various hypotheses have
been tested using the high-$Q^2$, deep inelastic neutral current $e^+p$
scattering data collected with the ZEUS detector at HERA.  The data correspond
to an integrated luminosity of $47.7\pbi$ of $e^+p$ interactions at $300\gev$
center-of-mass energy. No significant evidence for holidays has been found.
Lower limits at the $95\%$ confidence level are set on the average monthly
working time of a physicist.
}

\makezeustitle

ztalk-txt.tex
\setcounter{chap}{1}
%-------------------------------------------------------------------------------
%       Objectives
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Objectives of \LaTeXZ
  \end{center}}
}
%%
%%  List of main goals of LaTeX4zeus
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{ct}{c}{c}{350}{s}{0}{%
  \vspace*{5.mm}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>{\large\magenta Support common ZEUS 
                                         paper style}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>Provides well-defined appearence\\[-2.2mm]
                       \>\>(title page layout, fonts, \dots)\\
                       \>\cmin{\green}{-.5em}
                         \>Implementation of rules and conventions\\[-2.2mm]
                       \>\>in {\it The Guide for Writing ZEUS Papers}\\[7.mm]
  \ \cbull{\red}{-.5em}\>{\large\magenta Provide user-friendly}\\[-1.mm]
                       \>{\large\magenta \LaTeX\ environment}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>Collection of useful \LaTeX\ macros\\
                       \>\cmin{\green}{-.5em}
                         \>Ready-to-use setup for ZEUS drafts,\\[-2.2mm]
                       \>\>preprints, notes, coference contributions\\
                       \>\cmin{\green}{-.5em}
                         \>Easy installation\\
                       \>\cmin{\green}{-.5em}
                         \>Detailed WWW documentation\\[7.mm]
  \ \cbull{\red}{-.5em}\>{\large\magenta BiBTeX data base}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>Collects all references used by ZEUS\\[-2.2mm]
                       \>\>documents in one central data base.\\
                       \>\cmin{\green}{-.5em}
                         \>High quality standard (new entries\\[-2.2mm]
                       \>\>are checked by scientific editor)\\
                       \>\cmin{\green}{-.5em}
                         \>WWW interface for searching\\[-2.2mm]
                       \>\>and adding entries\\
                       \>\cmin{\green}{-.5em}
                         \>{\darkred Success depends on your 
                                     contributions!}
  \end{tabbing}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Elements
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Elements of \LaTeXZ
  \end{center}}
}
%%
%%  List of main elements of LaTeX4zeus
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{ct}{c}{c}{270}{s}{0}{%
  \vspace*{5.mm}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>{\large\magenta Documentation}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>{\green 
                    \texttt{http://giroz.desy.de/ZEUS{\usc}ONLY/LaTeX4zeus}}\\
                       \>\cmin{\green}{-.5em}
                         \>Installation, usage, development \dots\\
                       \>\cmin{\green}{-.5em}
                         \>Message interface\\[5.mm]
  \ \cbull{\red}{-.5em}\>{\large\magenta Installation mechanism}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>All relevant files in one gzip'ed tar file\\[-2.2mm]
                       \>\>$\Rightarrow$ download, unpack and execute\\[-2.2mm]
                       \>\>\phantom{$\Rightarrow$ }installation script\\
                       \>\cmin{\green}{-.5em}
                         \>Start working ...\\
                       \>\cmin{\green}{-.5em}
                         \>Easy migration for existing projects.\\[5.mm]
  \ \cbull{\red}{-.5em}\>{\large\magenta \LaTeX\ macros}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>Provide all the nice handy utilities\\[-2.2mm]
                       \>\>you always (never?) wanted to have.\\[5.mm]
  \ \cbull{\red}{-.5em}\>{\large\magenta BiBTeX data base}\\[2.mm]
                       \>\cmin{\green}{-.5em}
                         \>Just select your references and use them.\\
                       \>\cmin{\green}{-.5em}
                         \>Provide missing references\\[-2.2mm]
                       \>\>using WWW interface.\\
                       \>\cmin{\green}{-.5em}
                         \>Checking, formatting etc.\ is done for you.\\[5.mm]
  \ \cbull{\red}{-.5em}\>{\large\magenta An advanced class package for slides}
  \end{tabbing}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Message form
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Message form
  \end{center}}
}
%%
%%  Show message form window
%%
\putbox{p}{ct}{c}{c}{400}{1800}{0}{figure=plots/l4z_message.eps,clip=}
%%
%%  Some explanations
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{ct}{c}{c}{1900}{s}{0}{%
  \vspace*{5.mm}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>Messages are stored in WWW-accessible file\\[2.mm]
  \ \cbull{\red}{-.5em}\>Scientific editor and/or \LaTeXZ\\
                       \>developper will react a.s.a.p.
  \end{tabbing}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Bibliography search form
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Bibliography search form
  \end{center}}
}
%%
%%  Show message form window
%%
\putbox{p}{ct}{c}{c}{400}{1800}{0}{figure=plots/l4z_search1.eps,clip=}
%%
%%  Some explanations
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{ct}{c}{c}{1750}{s}{0}{%
  \vspace*{5.mm}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>You can request a logical {\it and} or {\it or}\\
                       \>of up to 5 search conditions.\\[2.mm]
  \ \cbull{\red}{-.5em}\>Note that search is done in BiBTeX files\\
                       \>containing LaTeX syntax.\\[2.mm]
  \ \cbull{\red}{-.5em}\>Online help available
  \end{tabbing}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Bibliography search results
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Bibliography search results
  \end{center}}
}
%%
%%  Show message form window
%%
\putbox{p}{ct}{c}{c}{550}{1800}{0}{figure=plots/l4z_search2.eps,clip=}
%%
%%  Some explanations
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{ct}{c}{c}{1900}{s}{0}{%
  \vspace*{5.mm}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>You may refine your search by going back\\
                       \>to search form.
  \end{tabbing}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Input form
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Bibliography input form
  \end{center}}
}
%%
%%  Show message form window
%%
\putbox{p}{ct}{c}{c}{350}{1800}{0}{figure=plots/l4z_input.eps,clip=}
%%
%%  Some explanations
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{ct}{c}{c}{1800}{s}{0}{%
  \vspace*{5.mm}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>Mechanism to avoid duplicate identifiers\\[2.mm]
  \ \cbull{\red}{-.5em}\>Mechanism to modify exsting entries\\
                       \>(have to be checked by editor)\\[2.mm]
  \ \cbull{\red}{-.5em}\>Detailed online help\\[2.mm]
  \ \cbull{\red}{-.5em}\>Please adhere to format conventions!
  \end{tabbing}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Life Cycle of a \LaTeXZ BiBTeX entry
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{250}{%
  \begin{center}
  \large\bf Life Cycle of a \LaTeXZ\\[-3.mm]
            BiBTeX entry
  \end{center}}
}
%%
%%  stations
%%
{
\SetWidth{12.0}
\SetColor{Red}
\ArrowLine(450,2150)(450,1650)
\ArrowLine(450,1600)(450,1000)
\ArrowLine(450,1050)(450,350)
}
{\putboxparloc{}{1.pt}{darkgreen}{lightpink}{darkgreen}
\putbox{f}{lt}{c}{0}{350}{900}{0}{%
  \begin{center}
  Entry by user\\
  {\small\darkblue (can be used, preliminary)}
  \end{center}
}}
{\putboxparloc{}{1.pt}{darkgreen}{lightpink}{darkgreen}
\putbox{f}{lt}{c}{0}{850}{900}{0}{%
  \begin{center}
  Entry into\\
  \LaTeXZ data base\\
  {\small\darkblue (fully autorized usage)}
  \end{center}
}}
{\putboxparloc{}{1.pt}{darkgreen}{lightpink}{darkgreen}
\putbox{f}{lt}{c}{0}{1450}{900}{0}{%
  \begin{center}
  Update by user\\
  {\small\darkblue (main entry unchanged, update can be used)}
  \end{center}
}}
{\putboxparloc{}{1.pt}{darkgreen}{lightpink}{darkgreen}
\putbox{f}{lt}{c}{0}{2050}{900}{0}{%
  \begin{center}
  Update in data base\\
  {\small\darkblue (main entry changed, 
  old and temporary versions may remain
  available if necessary)}
  \end{center}
}}
%%
%%  actions
%%
{
\SetWidth{12.0}
\SetColor{Red}
\LongArrow(1000,1900)(500,1900)
\LongArrow(1000,1300)(500,1300)
\LongArrow(1000,700)(500,700)
}
{\putboxparloc{}{1.pt}{darkblue}{lightyellow}{black}
\putbox{f}{rc}{c}{-0}{720}{750}{0}{%
  \begin{center}
  Check by scientific editor\\
  {\small\darkred 
   (reference data,\\ 
   identifier,\\
   \LaTeX\ formatting)

  }
  \end{center}
}}
{\putboxparloc{}{1.pt}{darkblue}{lightyellow}{black}
\putbox{f}{rc}{c}{-0}{1320}{750}{0}{%
  \begin{center}
  Mistake, change,\\
  missing information\\
  detected by user\\
  {\small\darkred 
   (use update mode\\ 
   of \LaTeXZ\\
   input form)

  }
  \end{center}
}}
{\putboxparloc{}{1.pt}{darkblue}{lightyellow}{black}
\putbox{f}{rc}{c}{-0}{1920}{750}{0}{%
  \begin{center}
  Check by scientific editor\\
  {\small\darkred 
   (keep old identifiers\\ 
   connected to\\
   updated data)

  }
  \end{center}
}}
%%
\end{boxpage}
%-------------------------------------------------------------------------------
%       Status and Release
%-------------------------------------------------------------------------------
\begin{boxpage}
%%
%%  header box
%%
{\putboxparloc{}{1.pt}{darkblue}{yellow}{darkblue}
\putbox{f}{ct}{c}{c}{0}{s}{200}{%
  \begin{center}
  \large\bf Status and Release
  \end{center}}
}
%%
%%  Status
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{lt}{c}{0}{300}{1400}{0}{%
  \vspace*{-12.mm}
  \begin{center}{\large\magenta Status:}\end{center}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>First tests successful\\[-2.mm]
                       \>(thanks to Brian Foster, Alex Kappes,\\[-2.mm]
                       \>Matthew Wing for giving it a try)\\[2.mm]
  \ \cbull{\red}{-.5em}\>Meanwhile: lots of improvements\\[-2.mm]
                       \>implemented\\[2.mm]
  \ \cbull{\red}{-.5em}\>Some details have to be finalized.
  \end{tabbing}
}}
%%
%%  Your response
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{lt}{c}{0}{1700}{1400}{0}{%
  \vspace*{-12.mm}
  \begin{center}{\large\magenta Your response:}\end{center}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>{\red Give it a try!}\\[2.mm]
  \ \cbull{\red}{-.5em}\>{\red Please} report problems, criticism,\\[-2.mm]
                       \>suggestions, comments\\[-2.mm]
                       \>(use the message form!)\\[2.mm]
  \ \cbull{\red}{-.5em}\>It is like investing some work now\\[-2.mm]
                       \>to save much more work later\dots
  \end{tabbing}
}}
%%
%%  Release
%%
{\putboxparloc{}{2.pt}{darkgreen}{lightyellow}{darkblue}
\putbox{f}{rt}{c}{-0}{1070}{1400}{0}{%
  \vspace*{-12.mm}
  \begin{center}{\large\magenta Release:}\end{center}
  \begin{tabbing}
  dd\ \cbull{\red}{-.5em}\=\ \cmin{\red}{.5em}\=\kill
  \ \cbull{\red}{-.5em}\>Expected in the next days\\[-2.mm]
                       \>(not later than end of next week)\\[2.mm]
  \ \cbull{\red}{-.5em}\>Will be announced to zeus+all\\[2.mm]
  \ \cbull{\red}{-.5em}\>It's already usable, though! 
  \end{tabbing}
}}
%%
\end{boxpage}

ztalk.tex
%==============================================================================
%
%      LaTeX4zeus talk at ZEUS Collaboration meeting, 24.10.00
%      _______________________________________________________
%
%      Please consult the WWW LaTeX4zeus documentation for explanations
%      and usage information related to this LaTeX setup. In particular,
%      refer to the section "Using LaTeX4zeus for other projects" in
%
%      http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/html/l4z.html
%
%==============================================================================
%
%       Use your favorite document class (default: article)
%       ---------------------------------------------------
%
%       boxpage options:    
%
%       -> showgrid       to show a background grid on each page
%                         (very useful for layout design)
%       -> noshowgrid     don't show the grid (default)
%
%       All other options are passed to slides.cls
%
\documentclass[a4paper,dvips,noshowgrid]{./LaTeX/styles/boxpage}
%
%       Use English language 
%       --------------------
%       <change "english" -> "american" to conform to American standards>
%
\usepackage[american]{babel}
%
%       Auxiliary packages
%       --------------------------
%
%       The following packages may be omitted if they are already
%       automatically loaded by the LaTeX class file used:
%       -> amsmath      - to use the AMS extended math package
%                         [centertags] -> equation numbers vertically centered
%                                         in split environment
%                         [tbtags]     -> equation numbers placed at bottom of
%                                         split environment
%                         [intlimits]  -> integral limits on bottom and top
%                                         of integral sign
%       -> amssymb      - to obtain additional math symbols in AMS fonts
%       -> amscd        - to obtain AMS flow chart utilities
%       -> array        - to obtain additional tabular functionality
%       -> multirow     - for multirow-entries in tables
%       -> colordvi     - dvi-level color support, needed for axodraw
%       -> axodraw      - to draw Feynman diagrams (by J.A.M.Vermaseren)
%       -> dcolumn      - for decimal-point-justified table columns
%       -> xspace       - to add empty space after commands
%       -> upgreek      - provide upright greek letters
%       -> color        - color support
%       -> pifont       - ZapfDingbats font (see Companion, 11.9.3)
%       -> fancybox     - for fancy boxes (shaded, rounded etc.)
%
\usepackage[intlimits,centertags]{amsmath}
\usepackage{amssymb}
\usepackage{amscd}
\usepackage{array}
\usepackage{multirow}
\usepackage{color}
\usepackage{colordvi,./LaTeX/styles/axodraw}
\usepackage{dcolumn}
\usepackage{xspace}
\usepackage{./LaTeX/styles/upgreek}
\usepackage{pifont}
\usepackage{fancybox}
%
%       <Here you can include additional auxiliary packages:>
%       -----------------------------------------------------
%
%       use \usepackage[options]{package name}
%
%       File './LaTeX/zeus/zeus_other_def.tex' contains the standard set 
%            of TeX definitions etc., without reference to definitions
%            in zeus_paper.cls
%
\input ./LaTeX/zeus/zeus_other_def.tex
%
%       File 'ztalk-fmt.tex' contains additional definitions
%
\input  ztalk-fmt.tex
%==============================================================================
%       Here comes the document.
%==============================================================================
\includeonly{ztalk-tit,ztalk-txt}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\include{ztalk-tit}
%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
\include{ztalk-txt}
%
%       ... that's it
%
\end{document}

ztalk-tit.tex
%-------------------------------------------------------------------------------
%       Title page
%-------------------------------------------------------------------------------
{
\begin{boxpage}[e]
%%
%%  title box
%%
{
\putboxparloc{}{1.9pt}{purple}{yellow}{purple}
\putbox{f}{ct}{t}{c}{0}{s}{0}{
  \begin{center}
    \bf\Large
    \stru{2.2ex}{0.ex}
    \LaTeXZ:\kern3.cm\\
    A \LaTeX\ Environment\kern3.cm\\[-3.mm]
    for ZEUS\kern3.cm
    \stru{0.ex}{1.5ex}
  \end{center}}%
}
%%
%%  the LaTeX lion
%%
\putbox{p}{rt}{c}{-20}{20}{350}{380}{figure=plots/lion_yellow.eps,clip=}
%%
%%  name, institute
%%
{
\putboxcolloc{blue}{}{cyan}
\putbox{b}{ct}{t}{c}{700}{s}{0}{
  \begin{center}
     Uli Katz,\\
     University of Bonn
  \end{center}}%
}
%%
%%  the ZEUS logo
%%
\putbox{p}{lt}{c}{80}{1000}{500}{500}{figure=plots/zeus_logo.eps,clip=}
%%
%%  add occasion, date
%%
{
\putboxcolloc{red}{lightyellow}{darkcyan}
\putbox{B}{rt}{c}{-0}{1000}{1070}{400}{
  \begin{center}
     \vfill
     {\large
     Collaboration Meeting}
     \vfill
     DESY, 23-27.~Oct.~2000
     \vfill
  \end{center}}%
}
%%
%%  table of contents
%%
{
\putboxparloc{4.mm}{}{green}{lightestcyan}{black}
\putbox{f}{cb}{c}{c}{-150}{1400}{0}{
    \cbull{\red}{0.7em} {\darkblue Objectives}\\[0.5mm]
    \cbull{\red}{0.7em} {\darkblue Elements}\\[0.5mm]
    \cbull{\red}{0.7em} {\darkblue The bibliography data base}\\[-1.5mm]
           \pbull{1.7em}{\darkgreen\small User interface}\\[-1.5mm]
           \pbull{1.7em}{\darkgreen\small Administration and quality checking}\\
    \cbull{\red}{0.7em} {\darkblue Status and release}
}}
%%
\end{boxpage}
}

ztalk-fmt.tex
%------------------------------------------------------------------------------
%       interline spacing, paragraph indention etc.
%------------------------------------------------------------------------------
\renewcommand{\baselinestretch}{1.0}
\renewcommand{\arraystretch}{1.1}
\parindent       0.0pt
\parskip         3.5pt
\overfullrule    0.0pt
%------------------------------------------------------------------------------
%       item spacings
%------------------------------------------------------------------------------
\itemsep    0.2ex plus 0.1ex minus 0.15ex
\topsep     0.2ex plus 0.1ex minus 0.15ex
\partopsep  0.2ex plus 0.1ex minus 0.1ex
\setlength\leftmargini   {1.6em}
\setlength\leftmarginii  {1.2em}
\setlength\leftmarginiii {1.0em}
\setlength\leftmarginiv  {0.8em}
%------------------------------------------------------------------------------
%       define colored bullet with distance for pseudo-itemize environment
%------------------------------------------------------------------------------
\def\cbullet#1{{#1\raisebox{0.3ex}{$\mbs{\bullet}$}}\kern1.em}
\def\cbull#1#2{{#1\raisebox{0.3ex}{$\mbs{\bullet}$}}\kern#2}
\def\carrow#1{{#1$\mbs{\to}$}\kern0.55em}
\def\cminus#1{{\bf#1--}\kern0.8em}
\def\cmin#1#2{{\bf#1--}\kern#2}
\def\cplus#1{{#1$\mbs{+}$}\kern0.8em}
\def\cplu#1#2{{#1$\mbs{+}$}\kern#2}
\def\cequal#1{{#1$\mbs{=}$}\kern0.7em}
\def\csurd#1{{#1$\mbs{\surd}$}\kern1.em}
\def\csur#1#2{{#1$\mbs{\surd}$}\kern#2}
\def\pbullet{\phantom{{\raisebox{0.3ex}{$\mbs{\bullet}$}}\kern1.em}}
\def\pbull#1{\phantom{{\raisebox{0.3ex}{$\mbs{\bullet}$}}\kern#1}}
\def\parrow{\phantom{{$\mbs{\to}$}\kern0.55em} }
\def\pminus{\phantom{{\bf--}\kern0.8em} }
\def\pequal{\phantom{{$\mbs{=}$}\kern0.7em} }
\def\psurd{\phantom{{$\mbs{\surd}$}\kern1.em} }
\def\psur#1{\phantom{{$\mbs{\surd}$}\kern#1} }
%------------------------------------------------------------------------------
%       "tight item" environment
%------------------------------------------------------------------------------
\newenvironment{tightitemize}[2]
 {\begin{list}{$\bullet$}%
  {\setlength{\leftmargin}{\leftmargini}%
   \setlength{\topsep}{#1}%
   \setlength{\itemsep}{#2}%
  }%
 }%
 {\end{list}}
%------------------------------------------------------------------------------
%       Define mathbfs
%       --------------
%------------------------------------------------------------------------------
\DeclareMathAlphabet{\mathbfs}{OT1}{lcmss}{bx}{sl}
%\DeclareMathAlphabet{\mathbfs}{OT1}{cmr}{bx}{sl}
\def\mbs{\mathbfs}
%------------------------------------------------------------------------------
%       boxpage decoration
%       ------------------
%------------------------------------------------------------------------------
\newcounter{chap}
\newcounter{chapslide}
\setcounter{chapslide}{0}
\renewcommand{\footerleft}{U.~Katz}
\renewcommand{\footerright}{\thechap.\thechapslide}
\renewcommand{\footercenter}{\LaTeXZ}
\renewcommand{\bpdtcolor}{money}
\renewcommand{\bpdtype}{B}
\renewcommand{\boxpagedecoration}{%
  \strut\kern-1.7cm
  \begin{turn}{90}
    \begin{minipage}{\textheight}
      \begin{center}
        \color{darkred}
        {\tiny{\usefont{OT1}{cmr}{m}{sc}
               ZEUS Collaboration Meeting, 
               DESY, 23.--27.~Oct.~2000\stru{0.pt}{4.6mm}}}
      \end{center}
    \end{minipage}%
  \end{turn}    
  \begin{minipage}[t]{\textwidth}
    \stepcounter{chapslide}
    \color{\bpdtcolor}\rule[\footerruledist]{\textwidth}{\footerrulewidth}
    \tiny\footerleft\hfill\footercenter\hfill\footerright
  \end{minipage}%
}

zdraft-tit.tex
\title{
Search for a Better Life\\
in Deep Inelastic $\mathbf{e^+p\to e^+X}$ Scattering\\
at HERA
}                                                       
                    
\author{ZEUS Collaboration}
\draftversion{0.1}
\date{15.\ May 2000}

\abstract{
In a search for a better life beyond the Standard Model, various hypotheses have
been tested using the high-$Q^2$, deep inelastic neutral current $e^+p$
scattering data collected with the ZEUS detector at HERA.  The data correspond
to an integrated luminosity of $47.7\pbi$ of $e^+p$ interactions at $300\gev$
center-of-mass energy. No significant evidence for holidays has been found.
Lower limits at the $95\%$ confidence level are set on the average monthly
working time of a physicist.
}

\makezeustitle

zdraft-txt.tex
\pagenumbering{arabic} 
\pagestyle{plain}
% ----------------------------------------------------------------------------
%       Introduction
% ----------------------------------------------------------------------------
\section{Introduction}
\label{sec-int}

Here comes your introductory text.

% ----------------------------------------------------------------------------
%       Experimental set-up
% ----------------------------------------------------------------------------
\section{Experimental set-up}
\label{sec-exp}

Here you might want to describe your data samples and the detctor. In
particular, you may use some of the text fragments provided as \LaTeXZ
macros.

\Zdetdesc

\Zctddesc\ZcoosysfnBeta

\Zcaldesc

\vfill\eject

zdraft-cit.tex
%==============================================================================
%	Some definitions of citations
%==============================================================================
%------------------------------------------------------------------------------
%	-> CTD
%------------------------------------------------------------------------------
\def\citeCTD{{\cite{%
nim:a279:290,*npps:b32:181,*nim:a338:254%
}}\xspace}
%------------------------------------------------------------------------------
%	-> CAL
%------------------------------------------------------------------------------
\def\citeCAL{{\cite{%
nim:a309:77,*nim:a309:101,*nim:a321:356,*nim:a336:23%
}}\xspace}

zdraft-ref.tex
{
\def\bibname{\Large\bf References}
\def\refname{\Large\bf References}
\pagestyle{plain}
\ifzeusbst
  \bibliographystyle{./BiBTeX/bst/l4z_default}
\fi
\ifzdrftbst
  \bibliographystyle{./BiBTeX/bst/l4z_draft}
\fi
\ifzbstepj
  \bibliographystyle{./BiBTeX/bst/l4z_epj}
\fi
\ifzbstnp
  \bibliographystyle{./BiBTeX/bst/l4z_np}
\fi
\ifzbstpl
  \bibliographystyle{./BiBTeX/bst/l4z_pl}
\fi
{\raggedright
\bibliography{<comma-separated list of bib files>}}
}
\vfill\eject

zdraft.tex
%==============================================================================
%
%       <Insert paper title here>
%       _________________________
%
%      Please consult the WWW LaTeX4zeus documentation for explanations
%      and usage information related to this LaTeX setup:
%
%      http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/html/l4z.html
%
%==============================================================================
%
%       Use 'zeus_paper' class
%       ----------------------
%
%       Options specific to zeus_paper.cls:
%
%       Paper type (mutually exclusive):
%       -> zpreprint    - DESY preprint (always 12pt)
%       -> zdraft       - draft paper (always 12pt)
%       -> zconf        - paper contributed to a conference (always 12pt)
%       -> znote        - ZEUS note (default=12pt, 10pt or 11pt can be selected)
%
%       Bibliography style (mutually exclusive):
%       ->zbstdefault   - standard ZEUS BiBTeX style file (default)    
%       ->zbstdraft     - standard ZEUS BiBTeX style file for drafts
%                         (default for drafts)   
%       ->zbstepj       - ZEUS BiBTeX style file for Eur.J.Phys papers 
%       ->zbstnp        - ZEUS BiBTeX style file for Nucl.Phys. papers 
%       ->zbstpl        - ZEUS BiBTeX style file for Phys.Lett. papers 
%
\documentclass[zdraft,zbstdraft]{./LaTeX/zeus/zeus_paper}
%
%       Use English language 
%       --------------------
%       <change "english" -> "american" to conform to American standards>
%
\usepackage[english]{babel}
%
%       Default auxiliary packages
%       --------------------------
%
%       The following packages are automatically loaded by zeus_paper.cls:
%       -> rotating     - to rotate boxes, pictures etc.
%       -> epsfig       - to include (encapsulated) postscript files
%       -> amsmath      - to use the AMS extended math package
%                         [centertags] -> equation numbers vertically centered
%                                         in split enevironment
%                         [intlimits]  -> integral limits on bottom and top
%                                         of integral sign
%       -> amssymb      - to obtain additional math symbols in AMS fonts
%       -> amscd        - to obtain AMS flow chart utilities
%       -> array        - to obtain additional tabular functionality
%       -> multirow     - for multirow-entries in tables
%       -> supertabular - for multi-page tables
%       -> dcolumn      - decimal-point aligned colums in tables
%       -> xspace       - to add empty space after commands
%       -> axodraw      - to draw Feynman diagrams (by J.A.M.Vermaseren)
%       -> upgreek      - provide upright greek letters
%       -> color        - color support
%       -> colors       - some color definitions
%       -> calc         - enhanced calculus in LaTeX macros
%       -> ifthen       - enhance logical structures in LaTeX macros
%       -> cite         - for multiple citations like [1-4] instead of [1,2,3,4]
%       -> mcite        - for multiple citations in one reference
%          
%       <Here you can include additional auxiliary packages:>
%       -----------------------------------------------------
%
%       use \usepackage[options]{package name}
%
%       File './LaTeX/zeus/zeus_def.tex' contains the standard set 
%                                        of TeX definitions etc.
%
\input ./LaTeX/zeus/zeus_def.tex
%
%       File './LaTeX/user/def.tex' contains additional user definitions
%
\input ./LaTeX/user/def.tex
%
%       File 'zdraft-cit.tex' contains citation definitions
%
\input  zdraft-cit.tex
%==============================================================================
%       Here comes the document.
%==============================================================================
\includeonly{zdraft-tit,zdraft-txt,zdraft-ref,zdraft-tab,zdraft-fig}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\include{zdraft-tit}
%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
\include{zdraft-txt}
%------------------------------------------------------------------------------
%       Bibliography
%------------------------------------------------------------------------------
\include{zdraft-ref}
%------------------------------------------------------------------------------
%       Tables
%------------------------------------------------------------------------------
\include{zdraft-tab}
%------------------------------------------------------------------------------
%       Figures
%------------------------------------------------------------------------------
\include{zdraft-fig}
%
%       ... that's it
%
\end{document}

zdraft-tab.tex
%-------------------------------------------------------------------------------
%       An example table
%-------------------------------------------------------------------------------
\begin{table}[p]
\begin{center}
\begin{tabular}{||c|rrrr|rrrr||}
\hline
Label & $\eta^u_{LL}$ & $\eta^u_{LR}$ & $\eta^u_{RL}$ & $\eta^u_{RR}$ & 
        $\eta^d_{LL}$ & $\eta^d_{LR}$ & $\eta^d_{RL}$ & $\eta^d_{RR}$ \\ 
\hline\hline
VV&  $+1$&$+1$&$+1$&$+1$&
     $+1$&$+1$&$+1$&$+1$ \\
AA&  $+1$&$-1$&$-1$&$+1$&
     $+1$&$-1$&$-1$&$+1$ \\
VA&  $+1$&$-1$&$+1$&$-1$&
     $+1$&$-1$&$+1$&$-1$ \\
X1&  $+1$&$-1$&$ 0$&$ 0$&
     $+1$&$-1$&$ 0$&$ 0$ \\
X2&  $+1$&$ 0$&$+1$&$ 0$&
     $+1$&$ 0$&$+1$&$ 0$ \\
X3&  $+1$&$ 0$&$ 0$&$+1$&
     $+1$&$ 0$&$ 0$&$+1$ \\
X4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$+1$&$+1$&$ 0$ \\
X5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$+1$&$ 0$&$+1$ \\
X6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$+1$&$-1$ \\
U1&  $+1$&$-1$&$ 0$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U2&  $+1$&$ 0$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U3&  $+1$&$ 0$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
\hline
\end{tabular}
\caption{The 30 scenarios for a better life considered in this paper.
         Each row of this table corresponds to two different scenarios for
         overall interference signs $\epsilon=+1$ and $\epsilon=-1$, 
         respectively.}
  \label{tab-models}
\end{center}
\end{table}

zdraft-fig.tex
%-------------------------------------------------------------------------------
%       Results
%-------------------------------------------------------------------------------
\begin{figure}[p]
\vfill
\begin{center}
\framebox[13.cm]{\rule{0.pt}{10.cm}}
\end{center}
\caption{
Life beyond the Standard Model.}
\label{fig-contfey}
\vfill
\end{figure}

zother.tex
%==============================================================================
%
%       <Insert paper title here>
%       _________________________
%
%      Please consult the WWW LaTeX4zeus documentation for explanations
%      and usage information related to this LaTeX setup. In particular,
%      refer to the section "Using LaTeX4zeus for other projects" in
%
%      http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/html/l4z.html
%
%==============================================================================
%
%       Use your favorite document class (default: article)
%       ---------------------------------------------------
%
\documentclass[a4paper,twoside,onecolumn,12pt,titlepage,final]{article}
%
%       Use English language 
%       --------------------
%       <change "english" -> "american" to conform to American standards>
%
\usepackage[english]{babel}
%
%       Auxiliary packages
%       --------------------------
%
%       The following packages may be omitted if they are already
%       automatically loaded by the LaTeX class file used:
%       -> rotating     - to rotate boxes, pictures etc.
%       -> epsfig       - to include (encapsulated) postscript files
%	-> amsmath      - to use the AMS extended math package
%                         [centertags] -> equation numbers vertically centered
%                                         in split environment
%                         [tbtags]     -> equation numbers placed at bottom of
%                                         split environment
%                         [intlimits]  -> integral limits on bottom and top
%                                         of integral sign
%	-> amssymb      - to obtain additional math symbols in AMS fonts
%	-> amscd        - to obtain AMS flow chart utilities
%	-> array        - to obtain additional tabular functionality
%	-> multirow     - for multirow-entries in tables
%       -> supertabular - for multi-page tables
%	-> dcolumn      - decimal-point aligned colums in tables
%       -> xspace       - to add empty space after commands
%       -> axodraw      - to draw Feynman diagrams (by J.A.M.Vermaseren)
%       -> upgreek      - provide upright greek letters
%       -> color        - color support
%       -> calc         - enhanced calculus in LaTeX macros
%       -> ifthen       - enhance logical structures in LaTeX macros
%	-> mcite        - for multiple citations in one reference
%	-> cite         - for multiple citations like [1-4] instead of [1,2,3,4]
%                         [space]      -> space between references items
%                                         in squre brackets (i.e. [1, 2]
%                                         instead of [1,2])
%                                         in split environment
%
\usepackage[figuresright]{rotating}
\usepackage{epsfig}
\usepackage[intlimits,tbtags]{amsmath}
\usepackage{amssymb,amscd}
\usepackage{array}
\usepackage{multirow}
\usepackage{supertabular}
\usepackage{dcolumn}
\usepackage{xspace}
\usepackage{./LaTeX/styles/axodraw}
\usepackage{./LaTeX/styles/upgreek}
\usepackage{tabularx}
\usepackage{color}
\usepackage{./LaTeX/styles/colors}
\usepackage{calc}
\usepackage{./LaTeX/styles/mcite}
\usepackage[space,noadjust]{cite}
%
%       <Here you can include additional auxiliary packages:>
%       -----------------------------------------------------
%
%       use \usepackage[options]{package name}
%
%       File './LaTeX/zeus/zeus_other_def.tex' contains the standard set 
%            of TeX definitions etc., without reference to definitions
%            in zeus_paper.cls
%
\input ./LaTeX/zeus/zeus_other_def.tex
%
%       File './LaTeX/user/def.tex' contains additional user definitions
%
\input ./LaTeX/user/def.tex
%
%       File 'zother-cit.tex' contains citation definitions
%
\input  zother-cit.tex
%==============================================================================
%       Here comes the document.
%==============================================================================
\includeonly{zother-tit,zother-txt,zother-ref,zother-tab,zother-fig}
\begin{document}
%------------------------------------------------------------------------------
%       Title sheet
%------------------------------------------------------------------------------
\include{zother-tit}
%------------------------------------------------------------------------------
%       Text
%------------------------------------------------------------------------------
\include{zother-txt}
%------------------------------------------------------------------------------
%       Bibliography
%------------------------------------------------------------------------------
\include{zother-ref}
%------------------------------------------------------------------------------
%       Tables
%------------------------------------------------------------------------------
\include{zother-tab}
%------------------------------------------------------------------------------
%       Figures
%------------------------------------------------------------------------------
\include{zother-fig}
%
%       ... that's it
%
\end{document}

zother-cit.tex
%==============================================================================
%	Some definitions of citations
%==============================================================================
%------------------------------------------------------------------------------
%	-> CTD
%------------------------------------------------------------------------------
\def\citeCTD{{\cite{%
nim:a279:290,*npps:b32:181,*nim:a338:254%
}}\xspace}
%------------------------------------------------------------------------------
%	-> CAL
%------------------------------------------------------------------------------
\def\citeCAL{{\cite{%
nim:a309:77,*nim:a309:101,*nim:a321:356,*nim:a336:23%
}}\xspace}

zother-ref.tex
{
\def\bibname{\Large\bf References}
\def\refname{\Large\bf References}
\pagestyle{plain}
%
%  If you (have to) use a different bibliography style file than
%  l4z_default.bst (or one of its clones derived from zeusbtxbst.bdc),
%  you will have to apply several adjustments to it:
%  - Add the fields "checked", "eprint", "replaces" and "replacedby",
%    "report", "submitdate" and "www" to the ENTRY section.
%  - Add a appropriate definitions for entry types "Preprint" and
%    "Thesis".
%
%  You will probably decide that it is horribly complicated to get 
%  this working.
%  I offer support for two types of possible solutions:
%  (i)  try to adhere to the required standards by choosing the 
%       appropriate flags in zeusbtxbst.bdc and adapting the 
%       resulting bst file as necessary
%  (ii) take the bst file provided by the editor or publishing
%       institution and adapt it to the data fields and conventions
%       in the LaTeX4zeus bibligraphy database.
%
%  I cannot promise that either of both possibilities works, but 
%  in general there should be a solution which allows to use the 
%  LaTeX4zeus bibligraphy database. Please contact me (Uli Katz,
%  katz@physik.uni-bonn.de) for further support.
%
%                                 Good luck! Uli
%
%
%  Please report technical problems using the LaTeX4zeus message form:
%  http://www-zeus.desy.de/ZEUS_ONLY/LaTeX4zeus/WWW/php/l4z_message.php3
%
\bibliographystyle{./BiBTeX/bst/l4z_default}
{\raggedright
\bibliography{<comma-separated list of bib files>}}
}
\vfill\eject

zother-tab.tex
%-------------------------------------------------------------------------------
%       An example table
%-------------------------------------------------------------------------------
\begin{table}[p]
\begin{center}
\begin{tabular}{||c|rrrr|rrrr||}
\hline
Label & $\eta^u_{LL}$ & $\eta^u_{LR}$ & $\eta^u_{RL}$ & $\eta^u_{RR}$ & 
        $\eta^d_{LL}$ & $\eta^d_{LR}$ & $\eta^d_{RL}$ & $\eta^d_{RR}$ \\ 
\hline\hline
VV&  $+1$&$+1$&$+1$&$+1$&
     $+1$&$+1$&$+1$&$+1$ \\
AA&  $+1$&$-1$&$-1$&$+1$&
     $+1$&$-1$&$-1$&$+1$ \\
VA&  $+1$&$-1$&$+1$&$-1$&
     $+1$&$-1$&$+1$&$-1$ \\
X1&  $+1$&$-1$&$ 0$&$ 0$&
     $+1$&$-1$&$ 0$&$ 0$ \\
X2&  $+1$&$ 0$&$+1$&$ 0$&
     $+1$&$ 0$&$+1$&$ 0$ \\
X3&  $+1$&$ 0$&$ 0$&$+1$&
     $+1$&$ 0$&$ 0$&$+1$ \\
X4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$+1$&$+1$&$ 0$ \\
X5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$+1$&$ 0$&$+1$ \\
X6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$+1$&$-1$ \\
U1&  $+1$&$-1$&$ 0$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U2&  $+1$&$ 0$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U3&  $+1$&$ 0$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U4&  $ 0$&$+1$&$+1$&$ 0$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U5&  $ 0$&$+1$&$ 0$&$+1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
U6&  $ 0$&$ 0$&$+1$&$-1$&
     $ 0$&$ 0$&$ 0$&$ 0$ \\
\hline
\end{tabular}
\caption{The 30 scenarios for a better life considered in this paper.
         Each row of this table corresponds to two different scenarios for
         overall interference signs $\epsilon=+1$ and $\epsilon=-1$, 
         respectively.}
  \label{tab-models}
\end{center}
\end{table}

zother-fig.tex
%-------------------------------------------------------------------------------
%       Results
%-------------------------------------------------------------------------------
\begin{figure}[p]
\vfill
\begin{center}
\framebox[13.cm]{\rule{0.pt}{10.cm}}
\end{center}
\caption{
Life beyond the Standard Model.}
\label{fig-contfey}
\vfill
\end{figure}

zother-tit.tex
%
%  Title page and abstract.
%  ------------------------
%  Note that the abstract is not included in the standard title page
%  of article.cls (and therefore appears on a separate page). Other
%  class files may define additional or different elements of the title
%  page.
%

\title{
A Scientific Report\\
Typeset in the \LaTeXZ Environment\\
Without Using \texttt{zeus{\usc}paper.cls}
}                                                       
                    
\author{Your name\\
        {\small\it your email}\\[3.mm]
        Your institution\\
        {\it address}\\
}
\date{15.\ May 2000}

\maketitle

\noindent{\bf Abstract:}
The \LaTeXZ environment provides access to a large bibliography
data base and a set of utility macros which can be used also outside
the framework set up in the \LaTeX{} class file \texttt{zeus{\usc}paper.cls}.
This report may serve as an example.


zother-txt.tex
\pagenumbering{arabic} 
\pagestyle{plain}
% ----------------------------------------------------------------------------
%       Introduction
% ----------------------------------------------------------------------------
\section{Introduction}
\label{sec-int}

Here comes your text and futher sections and subsections \dots

At some place you might in particular like to introduce the 
CTD \citeCTD and the ZEUS calorimeter \citeCAL. If not, these
references may serve as examples for the use of definitions
in \texttt{zother-cit.tex}.

\vfill\eject

hep-ex0304008.extracted_bib
\bibitem{pl:b191:442}
W.~Buchm\"uller, R.~R\"uckl and D.~Wyler,
\newblock Phys.\ Lett.{} {\bf B~191},~442~(1987).
\newblock Erratum in Phys.~Lett.~{\bf B~448}, 320 (1999)\relax
\relax

\bibitem{np:b397:3}
J.~Butterworth and H.~Dreiner,
\newblock Nucl.\ Phys.{} {\bf B~397},~3~(1993)\relax
\relax

\bibitem{epj:c16:253}
ZEUS \coll, J.~Breitweg \etal,
\newblock Eur.\ Phys.\ J.{} {\bf C~16},~253~(2000)\relax
\relax

\bibitem{pr:d63:052002}
ZEUS \coll, J.~Breitweg \etal,
\newblock Phys.\ Rev.{} {\bf D~63},~052002~(2001)\relax
\relax

\bibitem{zeus:1993:bluebook}
ZEUS \coll, U.~Holm~(ed.),
\newblock {\em The {ZEUS} Detector}.
\newblock Status Report (unpublished), DESY (1993),
\newblock available on
  \texttt{http://www-zeus.desy.de/bluebook/bluebook.html}\relax
\relax

\bibitem{nim:a279:290}
N.~Harnew \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~279},~290~(1989)\relax
\relax

\bibitem{npps:b32:181}
B.~Foster \etal,
\newblock Nucl.\ Phys.\ Proc.\ Suppl.{} {\bf B~32},~181~(1993)\relax
\relax

\bibitem{nim:a338:254}
B.~Foster \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~338},~254~(1994)\relax
\relax

\bibitem{nim:a309:77}
M.~Derrick \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~309},~77~(1991)\relax
\relax

\bibitem{nim:a309:101}
A.~Andresen \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~309},~101~(1991)\relax
\relax

\bibitem{nim:a321:356}
A.~Caldwell \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~321},~356~(1992)\relax
\relax

\bibitem{nim:a336:23}
A.~Bernstein \etal,
\newblock Nucl.\ Inst.\ Meth.{} {\bf A~336},~23~(1993)\relax
\relax

\bibitem{desy-92-066}
J.~Andruszk\'ow \etal,
\newblock Preprint \mbox{DESY-92-066}, DESY, 1992\relax
\relax

\bibitem{zfp:c63:391}
ZEUS \coll, M.~Derrick \etal,
\newblock Z.\ Phys.{} {\bf C~63},~391~(1994)\relax
\relax

\bibitem{acpp:b32:2025}
J.~Andruszk\'ow \etal,
\newblock Acta Phys.\ Pol.{} {\bf B~32},~2025~(2001)\relax
\relax

\bibitem{cpc:135:238}
T.~Sj\"{o}strand,
\newblock Comp.\ Phys.\ Comm.{} {\bf 135},~238~(2001)\relax
\relax

\bibitem{pythia_lq61_hera}
C.~Friberg, E.~Norrbin and T.~Sj\"ostrand,
\newblock Phys. Lett.{} {\bf B~403},~329~(1997)\relax
\relax

\bibitem{cpc:69:155}
A.~Kwiatkowski, H.~Spiesberger and H.-J.~M\"ohring,
\newblock Comp.\ Phys.\ Comm.{} {\bf 69},~155~(1992)\relax
\relax

\bibitem{cpc:81:381}
K.~Charchula, G.A.~Schuler and H.~Spiesberger,
\newblock Comp.\ Phys.\ Comm.{} {\bf 81},~381~(1994)\relax
\relax

\bibitem{spi:www:djangoh11}
H.~Spiesberger,
\newblock {\em {\sc heracles} and {\sc djangoh}: Event Generation for $ep$
  Interactions at {HERA} Including Radiative Processes}, 1998,
\newblock available on \texttt{http://www.desy.de/\til
  hspiesb/djangoh.html}\relax
\relax

\bibitem{cpc:101:108}
G.~Ingelman, A.~Edin and J.~Rathsman,
\newblock Comp.\ Phys.\ Comm.{} {\bf 101},~108~(1997)\relax
\relax

\bibitem{pr:d55:1280}
H.L.~Lai \etal,
\newblock Phys.\ Rev.{} {\bf D~55},~1280~(1997)\relax
\relax

\bibitem{epj:c14:285}
M.~Botje,
\newblock Eur.\ Phys.\ J.{} {\bf C~14},~285~(2000)\relax
\relax

\bibitem{tech:cern-dd-ee-84-1}
R.~Brun et al.,
\newblock {\em {\sc geant3}},
\newblock Technical Report CERN-DD/EE/84-1, CERN, 1987\relax
\relax

\bibitem{zfp:c74:207}
ZEUS \coll, J.~Breitweg \etal,
\newblock Z.\ Phys.{} {\bf C~74},~207~(1997)\relax
\relax

\bibitem{np:b406:187}
S.~Catani \etal,
\newblock Nucl.\ Phys.{} {\bf B~406},~187~(1993)\relax
\relax

\bibitem{pr:d48:3160}
S.D.~Ellis and D.E.~Soper,
\newblock Phys.\ Rev.{} {\bf D~48},~3160~(1993)\relax
\relax

\bibitem{epj:c12:411}
ZEUS \coll, J.~Breitweg \etal,
\newblock Eur.\ Phys.\ J.{} {\bf C~12},~411~(2000)\relax
\relax

\bibitem{pl:b539:197}
ZEUS \coll, S.~Chekanov \etal,
\newblock Phys.\ Lett.{} {\bf B~539},~197~(2002)\relax
\relax

\bibitem{zeus_nlo_fit}
ZEUS \coll, S.~Chekanov \etal,
\newblock Phys.\ Rev.{} {\bf D~67},~012007~(2003)\relax
\relax

\bibitem{zfp:c74:611}
T.~Plehn \etal,
\newblock Z.\ Phys.{} {\bf C~74},~611~(1997)\relax
\relax

\bibitem{zfp:c75:453}
Z.~Kunszt and W.J.~Stirling,
\newblock Z.\ Phys.{} {\bf C~75},~453~(1997)\relax
\relax

\bibitem{pl:b523:234}
H1 \coll, C.~Adloff \etal,
\newblock Phys.\ Lett.{} {\bf B~523},~234~(2001)\relax
\relax

\bibitem{DO_1stlq_eejets}
D{\O} \coll, B.~Abbott \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 79},~4321~(1997)\relax
\relax

\bibitem{DO_1stlq_results}
D{\O} \coll, B.~Abbott \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 80},~2051~(1998)\relax
\relax

\bibitem{DO_1stlq_sum}
D{\O} \coll, V.M.~Abazov \etal,
\newblock Phys.\ Rev.{} {\bf D~64},~092004~(2001)\relax
\relax

\bibitem{DO_1stlq_nunujets}
D{\O} \coll, V.M.~Abazov \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 88},~191801~(2002)\relax
\relax

\bibitem{CDF_1stlq_results}
CDF \coll, F.~Abe \etal,
\newblock Phys.\ Rev.\ Lett.{} {\bf 79},~4327~(1997)\relax
\relax

\bibitem{tevatron-combined-limit}
Leptoquark Limits Combination Working Group, C.~Grosso-Pilcher, G.~Landsberg
  and M.~Paterno,
\newblock Preprint \mbox{hep-ex/9810015}\relax
\relax

\bibitem{OPAL_1stlq_results}
OPAL \coll, G.~Abbiendi \etal,
\newblock Eur. Phys. J.{} {\bf C~6},~1~(1999)\relax
\relax

\bibitem{L3_1stlq_results}
L3 \coll, M. Acciari \etal,
\newblock Phys.\ Lett.{} {\bf B~489},~81~(2000)\relax
\relax

\bibitem{epj:c11:447}
H1 \coll, C.~Adloff \etal,
\newblock Eur.\ Phys.\ J.{} {\bf C~11},~447~(1999).
\newblock Erratum in Eur.~Phys.~J.~{\bf C~14}, 553 (2000)\relax
\relax

\bibitem{zfp:c46:679}
A.~Djouadi \etal,
\newblock Z.\ Phys.{} {\bf C~46},~679~(1990)\relax
\relax
