Measurement of the Inclusive Charmless Semileptonic Branching Ratio \\ of \mathversion{bold}$B$ Mesons and Determination of \mathversion{bold}$|V_{ub}|$
B.~Aubert
We report a measurement of the inclusive charmless semileptonic branching fraction of $B$ mesons in a sample of 89 million \BB\ events recorded with the \babar\ detector at the \FourS\ resonance. Events are selected by fully reconstructing the decay of one $B$ meson and identifying a charged lepton from the decay of the other $B$ meson. The number of signal events is extracted from the hadronic mass distribution and is used to determine the ratio of branching fractions ${\BR(\Bxulnu)/\BR(\Bxlnu)} = (2.06 \pm 0.25(stat) \pm 0.23(syst) \pm 0.36(theo))\times 10^{-2}$. %, where the $(\lbar, \lone)$ error reflects the uncertainty in %these HQET parameters Using the measured branching fraction for inclusive semileptonic $B$ decays, we find $\BR(\Bxulnu) = (2.24 \pm 0.27(stat) \pm 0.26(syst) \pm 0.39(theo))\times 10^{-3}$ and derive the CKM %quark mixing matrix element $\Vub = (4.62 \pm 0.28(stat) \pm 0.27(syst) %{\,\,}^{+\allvubEthHi}_{-\allvubEthLo}{}(theo) %\pm\allvubEthHi(theo) %\pm\allvubEtheo(V_{ub}theo) %\pm\allvubEpert(pert) %\pm\allvubEhomb(1/m^3_b) \pm 0.48 (theo) )\times 10^{-3} $. %where the last error is the theoretical uncertainty %in the extraction of \Vub\ from the total decay rate.
prl-submit.tex
% Use this class for normal prl format
\documentclass[twocolumn,showpacs,aps,prl,superscriptaddress,floatfix]{revtex4}

%Use these two lines for a single narrow column per page to facilitate markup
%\documentclass[onecolumn,showpacs,aps,prl]{revtex4}
%\setlength{\textwidth}{9.0cm}


% Articles are limited to a total of 460 PRL lines. The byline or author
% list,  when   formatted  in  the  standard   list  with  institutional
% footnotes, counts only as 55 lines.

% A fast and  reasonably accurate way to estimate the  length of a paper
% typeset in the standard revtex4  two-column format is to determine the
% length with  the author list and  any preprint lines  removed. In this
% case, each column is 56 PRL lines  and each page is 112 PRL lines. Add
% to the  overall length (minus author  list) the standard  55 lines for
% the byline  and you  have the length  estimate. Generally  the article
% should occupy about 3 and 2/3rds pages in two-column format.


\setlength{\textheight}{9.0in}

\usepackage{graphicx}
\usepackage{epsfig}
\usepackage{amsmath}
\usepackage{amssymb}
%%%\usepackage{lineno}
\usepackage{hhline}
\usepackage{multirow}
%\usepackage{floatflt}
\usepackage{fancyheadings}
\usepackage{ifthen}

%\usepackage{wasysym}
\RequirePackage{xspace}

% Set the following numbers to the correct values for your paper
\newcommand{\BABARPubYear}    {01}
\newcommand{\BABARPubNumber}  {00}
\newcommand{\BABARConfNumber} {00}
\newcommand{\SLACPubNumber} {0000}
\newcommand{\LANLNumber} {0000}

% -- Input symbols files
%%\input babarsym
%%%%%   Standard symbols for use in BABAR papers and BAD Notes
%%%%%
%%%%%   Revised   05/22/01 P. Dauncey     Added \hepex, etc. and clean up a bit
%%%%%   Revised   12/07/00 D. Hitlin      Added features of D. Kirkby's HEP.sty
%%%%%   Revised   07/13/00 R. Waldi       Corrected \Kbar, \Bbar ... macros
%%%%%   Revised   07/13/00 D. MacFarlane  Replaced incorrect \chic1 symbols
%%%%%   Revised   07/05/00 P. Dauncey     Added \mes, \mec, removed \O
%%%%%   Revised   07/04/00 D. MacFarlane  Added scalable version of BABAR
%%%%%   Revised   07/01/00 D. MacFarlane
%%%%%   Revised   06/21/00 D. Hitlin
%%%%%   Original  06/10/00 D. Hitlin
%%%%%   Revision of TDR and Physics Book symbol file
%%%%%

\RequirePackage{xspace}

%%%%%%%%%%%%%%%%%%%% BABAR ... THE NAME OF THE COLLABORATION %%%%

% Huge boldface
\def\hbabar{\mbox{{\huge\bf\sl B}\hspace{-0.1em}{\LARGE\bf\sl A}\hspace{-0.03em}{\huge\bf\sl B}\hspace{-0.1em}{\LARGE\bf\sl A\hspace{-0.03em}R}}}
% LARGE
\def\Lbabar{\mbox{{\LARGE\sl B}\hspace{-0.15em}{\Large\sl A}\hspace{-0.07em}{\LARGE\sl B}\hspace{-0.15em}{\Large\sl A\hspace{-0.02em}R}}}
% Large
\def\lbabar{\mbox{{\large\sl B}\hspace{-0.4em} {\normalsize\sl A}\hspace{-0.03em}{\large\sl B}\hspace{-0.4em} {\normalsize\sl A\hspace{-0.02em}R}}}
% normal size
%\def\babar{\mbox{\sl B\hspace{-0.4em} {\small\sl A}\hspace{-0.37em} \sl B\hspace{-0.4em} {\small\sl A\hspace{-0.02em}R}}}
% replace normalsize with scalable version       dbm 7/4/00
\usepackage{relsize}
\def\babar{\mbox{\slshape B\kern-0.1em{\smaller A}\kern-0.1em
    B\kern-0.1em{\smaller A\kern-0.2em R}}}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%   LEPTONS   %%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\let\emi\en
\def\electron   {\ensuremath{e}\xspace}
\def\en         {\ensuremath{e^-}\xspace}   % electron negative (\em is taken)
\def\ep         {\ensuremath{e^+}\xspace}
\def\epm        {\ensuremath{e^\pm}\xspace} 
\def\epem       {\ensuremath{e^+e^-}\xspace}
\def\ee         {\ensuremath{e^-e^-}\xspace}

\def\mmu        {\ensuremath{\mu}\xspace}
\def\mup        {\ensuremath{\mu^+}\xspace}
\def\mun        {\ensuremath{\mu^-}\xspace} % muon negative (\mum is taken)
\def\mumu       {\ensuremath{\mu^+\mu^-}\xspace}
\def\mtau       {\ensuremath{\tau}\xspace}

\def\taup       {\ensuremath{\tau^+}\xspace}
\def\taum       {\ensuremath{\tau^-}\xspace}
\def\tautau     {\ensuremath{\tau^+\tau^-}\xspace}

\def\ellm       {\ensuremath{\ell^-}\xspace}
\def\ellp       {\ensuremath{\ell^+}\xspace}
\def\ellell     {\ensuremath{\ell^+ \ell^-}\xspace}

\def\nub        {\ensuremath{\overline{\nu}}\xspace}
\def\nunub      {\ensuremath{\nu{\overline{\nu}}}\xspace}
\def\nub        {\ensuremath{\overline{\nu}}\xspace}
\def\nunub      {\ensuremath{\nu{\overline{\nu}}}\xspace}
\def\nue        {\ensuremath{\nu_e}\xspace}
\def\nueb       {\ensuremath{\nub_e}\xspace}
\def\nuenueb    {\ensuremath{\nue\nueb}\xspace}
\def\num        {\ensuremath{\nu_\mu}\xspace}
\def\numb       {\ensuremath{\nub_\mu}\xspace}
\def\numnumb    {\ensuremath{\num\numb}\xspace}
\def\nut        {\ensuremath{\nu_\tau}\xspace}
\def\nutb       {\ensuremath{\nub_\tau}\xspace}
\def\nutnutb    {\ensuremath{\nut\nutb}\xspace}
\def\nul        {\ensuremath{\nu_\ell}\xspace}
\def\nulb       {\ensuremath{\nub_\ell}\xspace}
\def\nulnulb    {\ensuremath{\nul\nulb}\xspace}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%  PHOTONS  %%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\g     {\ensuremath{\gamma}\xspace}
\def\gaga  {\ensuremath{\gamma\gamma}\xspace}  %% changed from \gg, which is >>
\def\ggstar{\ensuremath{\gamma\gamma^*}\xspace}

\def\ega    {\ensuremath{e\gamma}\xspace}
\def\game   {\ensuremath{\gamma e^-}\xspace}
\def\epemg  {\ensuremath{e^+e^-\gamma}\xspace}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%  Other GAUGE BOSONS  %%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\H      {\ensuremath{H^0}\xspace}
\def\Hp     {\ensuremath{H^+}\xspace}
\def\Hm     {\ensuremath{H^-}\xspace}
\def\Hpm    {\ensuremath{H^\pm}\xspace}
\def\W      {\ensuremath{W}\xspace}
\def\Wp     {\ensuremath{W^+}\xspace}
\def\Wm     {\ensuremath{W^-}\xspace}
\def\Wpm    {\ensuremath{W^\pm}\xspace}
\def\Z      {\ensuremath{Z^0}\xspace}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%   QUARKS   %%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\q     {\ensuremath{q}\xspace}
\def\qbar  {\ensuremath{\overline q}\xspace}
\def\qqbar {\ensuremath{q\overline q}\xspace}
\def\u     {\ensuremath{u}\xspace}
\def\ubar  {\ensuremath{\overline u}\xspace}
\def\uubar {\ensuremath{u\overline u}\xspace}
\def\d     {\ensuremath{d}\xspace}
\def\dbar  {\ensuremath{\overline d}\xspace}
\def\ddbar {\ensuremath{d\overline d}\xspace}
\def\s     {\ensuremath{s}\xspace}
\def\sbar  {\ensuremath{\overline s}\xspace}
\def\ssbar {\ensuremath{s\overline s}\xspace}
\def\c     {\ensuremath{c}\xspace}
\def\cbar  {\ensuremath{\overline c}\xspace}
\def\ccbar {\ensuremath{c\overline c}\xspace}
\def\b     {\ensuremath{b}\xspace}
\def\bbar  {\ensuremath{\overline b}\xspace}
\def\bbbar {\ensuremath{b\overline b}\xspace}
\def\t     {\ensuremath{t}\xspace}
\def\tbar  {\ensuremath{\overline t}\xspace}
\def\tbar  {\ensuremath{\overline t}\xspace}
\def\ttbar {\ensuremath{t\overline t}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%% LIGHT MESONS  %%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\piz   {\ensuremath{\pi^0}\xspace}
\def\pizs  {\ensuremath{\pi^0\mbox\,\rm{s}}\xspace}
\def\ppz   {\ensuremath{\pi^0\pi^0}\xspace}
\def\pip   {\ensuremath{\pi^+}\xspace}
\def\pim   {\ensuremath{\pi^-}\xspace}
\def\pipi  {\ensuremath{\pi^+\pi^-}\xspace}
\def\pipm  {\ensuremath{\pi^\pm}\xspace}
\def\pimp  {\ensuremath{\pi^\mp}\xspace}

\def\kaon  {\ensuremath{K}\xspace}
%%% do NOT use ensuremath here
\def\Kbar  {\kern 0.2em\overline{\kern -0.2em K}{}\xspace}
\def\Kb    {\ensuremath{\Kbar}\xspace}
\def\Kz    {\ensuremath{K^0}\xspace}
\def\Kzb   {\ensuremath{\Kbar^0}\xspace}
\def\KzKzb {\ensuremath{\Kz \kern -0.16em \Kzb}\xspace}
\def\Kp    {\ensuremath{K^+}\xspace}
\def\Km    {\ensuremath{K^-}\xspace}
\def\Kpm   {\ensuremath{K^\pm}\xspace}
\def\Kmp   {\ensuremath{K^\mp}\xspace}
\def\KpKm  {\ensuremath{\Kp \kern -0.16em \Km}\xspace}
\def\KS    {\ensuremath{K^0_{\scriptscriptstyle S}}\xspace} 
\def\KL    {\ensuremath{K^0_{\scriptscriptstyle L}}\xspace} 
\def\Kstarz  {\ensuremath{K^{*0}}\xspace}
\def\Kstarzb {\ensuremath{\Kbar^{*0}}\xspace}
\def\Kstar   {\ensuremath{K^*}\xspace}
\def\Kstarb  {\ensuremath{\Kbar^*}\xspace}
\def\Kstarp  {\ensuremath{K^{*+}}\xspace}
\def\Kstarm  {\ensuremath{K^{*-}}\xspace}
\def\Kstarpm {\ensuremath{K^{*\pm}}\xspace}
\def\Kstarmp {\ensuremath{K^{*\mp}}\xspace}

\newcommand{\etapr}{\ensuremath{\eta^{\prime}}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%% HEAVY MESONS  %%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%%% do NOT use ensuremath here
\def\Dbar    {\kern 0.2em\overline{\kern -0.2em D}{}\xspace}
\def\Db      {\ensuremath{\Dbar}\xspace}
\def\Dz      {\ensuremath{D^0}\xspace}
\def\Dzb     {\ensuremath{\Dbar^0}\xspace}
\def\DzDzb   {\ensuremath{\Dz {\kern -0.16em \Dzb}}\xspace}
\def\Dp      {\ensuremath{D^+}\xspace}
\def\Dm      {\ensuremath{D^-}\xspace}
\def\Dpm     {\ensuremath{D^\pm}\xspace}
\def\Dmp     {\ensuremath{D^\mp}\xspace}
\def\DpDm    {\ensuremath{\Dp {\kern -0.16em \Dm}}\xspace}
\def\Dstar   {\ensuremath{D^*}\xspace}
\def\Dstarb  {\ensuremath{\Dbar^*}\xspace}
\def\Dstarz  {\ensuremath{D^{*0}}\xspace}
\def\Dstarzb {\ensuremath{\Dbar^{*0}}\xspace}
\def\Dstarp  {\ensuremath{D^{*+}}\xspace}
\def\Dstarm  {\ensuremath{D^{*-}}\xspace}
\def\Ds      {\ensuremath{D^+_s}\xspace}
\def\Dsb     {\ensuremath{\Dbar^+_s}\xspace}
\def\Dss     {\ensuremath{D^*_s}\xspace}

% Obsolete
\newcommand{\dstr}{\ensuremath{\Dstar}\xspace}
\newcommand{\dstrstr}{\ensuremath{D^{**}}\xspace}
\newcommand{\dsp}{\ensuremath{\Dstarp}\xspace}
\newcommand{\dsm}{\ensuremath{\Dstarm}\xspace}
\newcommand{\dsz}{\ensuremath{\Dstarz}\xspace}


\def\B       {\ensuremath{B}\xspace}
%%% do NOT use ensuremath here
\def\Bbar    {\kern 0.18em\overline{\kern -0.18em B}{}\xspace}
\def\Bb      {\ensuremath{\Bbar}\xspace}
\def\BB      {\ensuremath{B\Bbar}\xspace} 
\def\Bz      {\ensuremath{B^0}\xspace}
\def\Bzb     {\ensuremath{\Bbar^0}\xspace}
\def\BzBzb   {\ensuremath{\Bz {\kern -0.16em \Bzb}}\xspace}
\def\Bu      {\ensuremath{B^+}\xspace}
\def\Bub     {\ensuremath{B^-}\xspace}
\def\Bp      {\ensuremath{\Bu}\xspace}
\def\Bm      {\ensuremath{\Bub}\xspace}
\def\Bpm     {\ensuremath{B^\pm}\xspace}
\def\Bmp     {\ensuremath{B^\mp}\xspace}
\def\BpBm    {\ensuremath{\Bu {\kern -0.16em \Bub}}\xspace}
\def\Bs      {\ensuremath{B_s}\xspace}
\def\Bsb     {\ensuremath{\Bbar_s}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%% ONIA %%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\jpsi     {\ensuremath{{J\mskip -3mu/\mskip -2mu\psi\mskip 2mu}}\xspace}
\def\psitwos  {\ensuremath{\psi{(2S)}}\xspace}
\def\psiprpr  {\ensuremath{\psi(3770)}\xspace}
\def\etac     {\ensuremath{\eta_c}\xspace}
\def\chiczero {\ensuremath{\chi_{c0}}\xspace}
\def\chicone  {\ensuremath{\chi_{c1}}\xspace}
\def\chictwo  {\ensuremath{\chi_{c2}}\xspace}
\mathchardef\Upsilon="7107
\def\Y#1S{\ensuremath{\Upsilon{(#1S)}}\xspace}% no space before {...}!
\def\OneS  {\Y1S}
\def\TwoS  {\Y2S}
\def\ThreeS{\Y3S}
\def\FourS {\Y4S}
\def\FiveS {\Y5S}

%\def\chic1{\ensuremath{\chi_{c1}}}
%\def\chic2{\ensuremath{\chi_{c2}}}
%\def\chic3{\ensuremath{\chi_{c3}}}
\def\chic#1{\ensuremath{\chi_{c#1}}\xspace} % dbm


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%% BARYONS %%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\proton      {\ensuremath{p}\xspace}
\def\antiproton  {\ensuremath{\overline p}\xspace}
\def\neutron     {\ensuremath{n}\xspace}
\def\antineutron {\ensuremath{\overline n}\xspace}

\mathchardef\Deltares="7101
\mathchardef\Xi="7104
\mathchardef\Lambda="7103
\mathchardef\Sigma="7106
\mathchardef\Omega="710A

%%% do NOT use ensuremath here
\def\Deltabar{\kern 0.25em\overline{\kern -0.25em \Deltares}{}\xspace}
\def\Lbar{\kern 0.2em\overline{\kern -0.2em\Lambda\kern 0.05em}\kern-0.05em{}\xspace}
\def\Sigbar{\kern 0.2em\overline{\kern -0.2em \Sigma}{}\xspace}
\def\Xibar{\kern 0.2em\overline{\kern -0.2em \Xi}{}\xspace}
\def\Obar{\kern 0.2em\overline{\kern -0.2em \Omega}{}\xspace}
\def\Nbar{\kern 0.2em\overline{\kern -0.2em N}{}\xspace}
\def\Xb{\kern 0.2em\overline{\kern -0.2em X}{}\xspace}

\def\X {\ensuremath{X}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%% TAU BRANCHING FRACTIONS %%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\BR         {{\ensuremath{\cal B}\xspace}}
\def\BRtauptoe  {\ensuremath{\BR(\taup \to \ep)}\xspace}
\def\BRtaumtoe  {\ensuremath{\BR(\taum \to \en)}\xspace}
\def\BRtauptomu {\ensuremath{\BR(\taup \to \mup)}\xspace}
\def\BRtaumtomu {\ensuremath{\BR(\taum \to \mun)}\xspace}



%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%  LIGHT HADRON DECAYS %%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\newcommand{\etaprepp}{\ensuremath{\etapr \to \eta \pipi}\xspace}
\newcommand{\etaprrg} {\ensuremath{\etapr \to \rho^0 \g}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%  B DECAYS   %%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\bpsiks     {\ensuremath{\Bz \to \jpsi \KS}\xspace}
\def\bpsikst    {\ensuremath{\Bz \to \jpsi \Kstar}\xspace}
\def\bpsikl     {\ensuremath{\Bz \to \jpsi \KL}\xspace}
\def\bpsikzeropi{\ensuremath{\Bz \to \jpsi \Kstarz (\to \KL \piz)}\xspace}
\def\bpsikpluspi{\ensuremath{\Bu \to \jpsi \Kstarp (\to \KL \pip)}\xspace}
\def\bpsikpi    {\ensuremath{\Bz/\Bzb \to \jpsi (\to \mumu) \Kpm \pimp}\xspace}
\def\bupsik     {\ensuremath{\Bpm \to \jpsi (\to \mumu) \Kpm}\xspace}
\def\bpsiX      {\ensuremath{\Bz \to \jpsi \X}\xspace}

\def\Bzbtomu    {\ensuremath{\Bzb \to \mu \X}\xspace}
\def\Bzbtox     {\ensuremath{\Bzb \to \X}\xspace}
\def\Bztopipi   {\ensuremath{\Bz \to \pipi}\xspace}
\def\Bztokpi    {\ensuremath{\Bz \to \Kpm \pimp}\xspace}
\def\Bztorhopi  {\ensuremath{\Bz \to \rho^+ \pim}\xspace}
\def\Bztorhorho {\ensuremath{\Bz \to \rho \rho}\xspace}
\def\Bztokrho   {\ensuremath{\Bz \to K \rho}\xspace}
\def\Bztokstpi  {\ensuremath{\Bz \to \Kstar \pi}\xspace}
\def\Bztoapi    {\ensuremath{\Bz \to a_1 \pi}\xspace}
\def\Bztodd     {\ensuremath{\Bz \to \DpDm}\xspace}
\def\Bztodstd   {\ensuremath{\Bz \to \Dstarp \Dm}\xspace}
\def\Bztodstdst {\ensuremath{\Bz \to \Dstarp \Dstarm}\xspace}

\def\BtoDK      {\ensuremath{B \to DK}\xspace}
\def\Btodstlnu  {\ensuremath{B \to \Dstar \ell \nu}\xspace}
\def\Btodstdlnu {\ensuremath{B \to \Dstar(D) \ell \nu}\xspace}
\def\Btorholnu  {\ensuremath{B \to \rho \ell \nu}\xspace}
\def\Btopilnu   {\ensuremath{B \to \pi \ell \nu}\xspace}

\def\Btoetah    {\ensuremath{B \to \eta h}\xspace}
\def\Btoetaph   {\ensuremath{B \to \etapr h}\xspace}

\newcommand{\Betaprks}{\ensuremath{\Bz \to \etapr \KS}\xspace}
\newcommand{\Betaprkz}{\ensuremath{\Bz \to \etapr \Kz}\xspace}

\def\btosgam    {\ensuremath{b \to s \g}\xspace}
\def\btodgam    {\ensuremath{b \to d \g}\xspace}
\def\btosll     {\ensuremath{b \to s \ellell}\xspace}
\def\btosnunu   {\ensuremath{b \to s \nunub}\xspace}
\def\btosgaga   {\ensuremath{b \to s \gaga}\xspace}
\def\btosglue   {\ensuremath{b \to s g}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%  Y(4S) DECAYS   %%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\upsbb   {\ensuremath{\FourS \to \BB}\xspace}
\def\upsbzbz {\ensuremath{\FourS \to \BzBzb}\xspace}
\def\upsbpbm {\ensuremath{\FourS \to \BpBm}\xspace}
\def\upspsikl{\ensuremath{\FourS \to (\bpsikl) (\Bzbtox)}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%  TAU DECAYS   %%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\tauptoe    {\ensuremath{\taup \to \ep \nunub}\xspace}
\def\taumtoe    {\ensuremath{\taum \to \en \nunub}\xspace}
\def\tauptomu   {\ensuremath{\taup \to \mup \nunub}\xspace}
\def\taumtomu   {\ensuremath{\taum \to \mun \nunub}\xspace}
\def\tauptopi   {\ensuremath{\taup \to \pip \nub}\xspace}
\def\taumtopi   {\ensuremath{\taum \to \pim \nu}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%% GAMMA-GAMMA REACTIONS %%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\ggtopi     {\ensuremath{\gaga \to \pipi}\xspace}
\def\ggtopiz    {\ensuremath{\gaga \to \ppz}\xspace}
\def\ggstox     {\ensuremath{\ggstar \to \X(1420) \to \kaon \kaon \pi}\xspace}
\def\ggstoeta   {\ensuremath{\ggstar \to \eta(550) \to \pipi \piz}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%  REACTIONS    %%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\upsbb {\ensuremath{\Upsilon{\rm( 4S)}\to B\Bbar}} 
\def\upsbzbz {\ensuremath{\Upsilon{\rm( 4S)}\to\BzBzb}} 
\def\upsbpbm {\ensuremath{\Upsilon{\rm( 4S)}\to\Bu\Bub}} 
\def\bpsiks{\ensuremath{B^0 \to \jpsi \KS}}
\def\bpsikst{\ensuremath{B^0 \to \jpsi \Kstar}}
\def\bpsikl{\ensuremath{B^0 \to \jpsi \KL}}
\def\bpsikzeropi{\ensuremath{B^0 \to \jpsi (K^{*0} \to \KL\pi^0)}}
\def\bpsikpluspi{\ensuremath{B^+ \to \jpsi K^{*+},\ K^{*+} \to \KL\pi^+}}
\def\bpsikpluspi{\ensuremath{
{\Bz}/B^0 \to \jpsi ( \to \mu^+ \mu^-) K^{\pm} \pi^{\mp} }}
\def\bupsik{\ensuremath{B^{\pm} \to \jpsi ( \to \mu^+ \mu^-) K^{\pm} }}
\def\bpsiX{\ensuremath{B^0 \to \jpsi X}}
\def\upspsikl{\ensuremath{\FourS\to (\bpsikl) (\bzb \to X)}}
\def\Bzbtomu    {\ensuremath{\Bzb \to \mu {\rm X}}}
\def\Bzbtox     {\ensuremath{\Bzb \to {\rm X}}}
\def\Bztopipi   {\ensuremath{B^0 \to \pipi}}
\def\Bztokpi    {\ensuremath{B^0 \to K^{\pm}\pi^{\mp}}}
\def\Bztorhopi  {\ensuremath{B^0 \to \rho^+\pi^-}}
\def\Bztorhorho {\ensuremath{B^0 \to \rho\rho}}
\def\Bztokrho   {\ensuremath{B^0 \to K\rho}}
\def\Bztokstpi  {\ensuremath{B^0 \to \Kstar\pi}}
\def\Bztoapi    {\ensuremath{B^0 \to a_1\pi}}
\def\Bztodd     {\ensuremath{B^0 \to D^+D^-}}
\def\Bztodstd   {\ensuremath{B^0 \to D^{*+}D^-}}
\def\Bztodstdst {\ensuremath{B^0 \to D^{*+}D^{*-}}}
\def\BtoDK      {\ensuremath{B \to DK}}
\def\Btodstlnu  {\ensuremath{B \to D^*l\nu}}
\def\Btodstdlnu {\ensuremath{B \to D^*(D)l\nu}}
\def\Btorholnu  {\ensuremath{B \to \rho l\nu}}
\def\Btopilnu   {\ensuremath{B \to \pi l\nu}}
\def\Btoetah    {\ensuremath{B \to \eta h}}
\def\Btoetaph   {\ensuremath{B \to \eta ' h}}
\def\tauptoe    {\ensuremath{\taup \to \ep \nu \bar \nu}}
\def\taumtoe    {\ensuremath{\taum \to \en \nu \bar \nu}}
\def\tauptomu   {\ensuremath{\taup \to \mup \nu \bar \nu}}
\def\taumtomu    {\ensuremath{\taum \to \mun \nu \bar \nu}}
\def\Btoetaph   {\ensuremath{B \to \eta ' h}}
\def\tauptopi   {\ensuremath{\taup \to \pip \bar \nu}}
\def\taumtopi   {\ensuremath{\taum \to \pim \nu}}
\def\ggtopi     {\ensuremath{\gaga \to \pipi}}
\def\ggtopiz    {\ensuremath{\gaga \to \ppz}}
\def\ggstox     {\ensuremath{\ggstar \to \Xpart(1420) \to \kaon \kaon \pi}}
\def\ggstoeta   {\ensuremath{\ggstar \to \eta(550) \to \pipi \piz}}
\def\btosgam   {\ensuremath{b \to s \gamma}}
\def\btodgam   {\ensuremath{b \to d \gamma}}
\def\btosll    {\ensuremath{b \to s l^+l^-}}
\def\btosnunu   {\ensuremath{b \to s \nu\nu}}
\def\btosgaga   {\ensuremath{b \to s \gaga}}
\def\btosglue   {\ensuremath{b \to s g}}

%\newcommand {\Dz} {\ensuremath{D^{0}}}
\newcommand {\Dc} {\ensuremath{D^{+}}}

\newcommand {\Dtoa} {\ensuremath{\Dz \to K \pi}}
\newcommand {\Dtob} {\ensuremath{\Dz \to K^{0} \piz}}
\newcommand {\Dtoc} {\ensuremath{\Dz \to K^{0} \pi \pi}}
\newcommand {\Dtod} {\ensuremath{\Dz \to K \pi \piz}}
\newcommand {\Dtoe} {\ensuremath{\Dz \to K^{0} \piz \piz}}
\newcommand {\Dtof} {\ensuremath{\Dz \to K \pi \pi \pi}}
\newcommand {\Dtog} {\ensuremath{\Dz \to K^{0} \pi \pi \piz}}
\newcommand {\Dtoh} {\ensuremath{\Dz \to K \pi \piz \piz}}
\newcommand {\Dtoi} {\ensuremath{\Dz \to K \pi \pi \pi \piz}}
\newcommand {\Dtol} {\ensuremath{\Dz \to \pi \pi}}
\newcommand {\Dtom} {\ensuremath{\Dz \to \piz \piz}}
\newcommand {\Dton} {\ensuremath{\Dz \to \pi \pi \piz}}
\newcommand {\Dtoo} {\ensuremath{\Dz \to \pi \pi \pi \pi}}
\newcommand {\Dtop} {\ensuremath{\Dz \to \pi \pi \pi \pi \piz}}
\newcommand {\Dtoq} {\ensuremath{\Dz \to \pi \pi \pi \pi \pi \pi}}
\newcommand {\Dtor} {\ensuremath{\Dz \to K l \nu}}
\newcommand {\Dtos} {\ensuremath{\Dz \to K \piz l \nu}}
\newcommand {\Dtot} {\ensuremath{\Dz \to K^{0} \pi l \nu}}
\newcommand {\Dtou} {\ensuremath{\Dz \to K \pi \pi l \nu}}
\newcommand {\Dtov} {\ensuremath{\Dz \to \pi l \nu}}
\newcommand {\Dtoaa} {\ensuremath{\Dc \to K^{0} \pi}}
\newcommand {\Dtoab} {\ensuremath{\Dc \to K \pi \pi}}
\newcommand {\Dtoac} {\ensuremath{\Dc \to K^{0} \pi \piz}}
\newcommand {\Dtoad} {\ensuremath{\Dc \to K \pi \pi \piz}}
\newcommand {\Dtoae} {\ensuremath{\Dc \to K^{0} \pi \pi \pi}}
\newcommand {\Dtoaf} {\ensuremath{\Dc \to K \pi \pi \pi \pi}}
\newcommand {\Dtoag} {\ensuremath{\Dc \to K \pi \pi \piz \piz}}
\newcommand {\Dtoah} {\ensuremath{\Dc \to K^{0} \pi \pi \pi \piz}}
\newcommand {\Dtoai} {\ensuremath{\Dc \to K^{0} \pi \pi \pi \pi \pi}}
\newcommand {\Dtoal} {\ensuremath{\Dc \to K \pi \pi \pi \pi \piz}}
\newcommand {\Dtoam} {\ensuremath{\Dc \to K^{0} K^{0} K }}
\newcommand {\Dtoan} {\ensuremath{\Dc \to \pi \piz}}
\newcommand {\Dtoao} {\ensuremath{\Dc \to \pi \pi \pi}}
\newcommand {\Dtoap} {\ensuremath{\Dc \to \pi \pi \pi \piz}}
\newcommand {\Dtoaq} {\ensuremath{\Dc \to \pi \pi \pi \pi \pi}}
\newcommand {\Dtoar} {\ensuremath{\Dc \to \pi \pi \pi \pi \pi \piz}}
\newcommand {\Dtoas} {\ensuremath{\Dc \to \mu \nu}}
\newcommand {\Dtoat} {\ensuremath{\Dc \to K^{0} l \nu}}
\newcommand {\Dtoau} {\ensuremath{\Dc \to K \pi l \nu}}
\newcommand {\Dtoav} {\ensuremath{\Dc \to K^{0} \pi \pi l \nu}}
\newcommand {\Dtoaz} {\ensuremath{\Dc \to K \pi \piz l \nu}}
\newcommand {\Dtoaaz} {\ensuremath{\Dc \to \piz l \nu}}
     

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%   KINEMATICS    %%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\ptot       {\mbox{$p$}\xspace}
%\def\pxy        {\mbox{$p_{\rm t}$}
\def\pxy        {\mbox{$p_T$}\xspace}
%\def\pt         {\mbox{$p_{\rm t}$}\xspace}
\def\pt         {\mbox{$p_T$}\xspace}
\def\mes        {\mbox{$m_{\rm ES}$}\xspace}
\def\mec        {\mbox{$m_{\rm EC}$}\xspace}
\def\DeltaE     {\mbox{$\Delta E$}\xspace}

\def\pbcm {\ensuremath{p^*_{\Bz}}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%   GEOMETRY    %%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\mphi       {\mbox{$\phi$}\xspace}
\def\mtheta     {\mbox{$\theta$}\xspace}
\def\ctheta     {\mbox{$\cos\theta$}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%% ENERGY AND MOMENTUM %%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\newcommand{\tev}{\ensuremath{\mathrm{\,Te\kern -0.1em V}}\xspace}
\newcommand{\gev}{\ensuremath{\mathrm{\,Ge\kern -0.1em V}}\xspace}
\newcommand{\mev}{\ensuremath{\mathrm{\,Me\kern -0.1em V}}\xspace}
\newcommand{\kev}{\ensuremath{\mathrm{\,ke\kern -0.1em V}}\xspace}
\newcommand{\ev}{\ensuremath{\mathrm{\,e\kern -0.1em V}}\xspace}
\newcommand{\gevc}{\ensuremath{{\mathrm{\,Ge\kern -0.1em V\!/}c}}\xspace}
\newcommand{\mevc}{\ensuremath{{\mathrm{\,Me\kern -0.1em V\!/}c}}\xspace}
\newcommand{\gevcc}{\ensuremath{{\mathrm{\,Ge\kern -0.1em V\!/}c^2}}\xspace}
\newcommand{\mevcc}{\ensuremath{{\mathrm{\,Me\kern -0.1em V\!/}c^2}}\xspace}
%\def\ev   {\ensuremath{\rm \,e\kern -0.08em V}}
%\def\kev  {\ensuremath{\rm \,ke\kern -0.08em V}} 
%\def\mev  {\ensuremath{\rm \,Me\kern -0.08em V}} 
%\def\gev  {\ensuremath{\rm \,Ge\kern -0.08em V}} 
%\def\gevc {\ensuremath{\rm \,Ge\kern -0.08em V\!/c}} 
%\def\gevc {\ensuremath{{\rm \,Ge\kern -0.08em V\!/}c}} 
%\def\tev  {\ensuremath{\rm \,Te\kern -0.08em V}}
%\def\mevc {\ensuremath{\rm \,Me\kern -0.08em V\!/c}} 
%\def\mevc {\ensuremath{{\rm \,Me\kern -0.08em V\!/}c}} 
%\def\gevcc{\ensuremath{\rm \,Ge\kern -0.08em V\!/c^2}} 
%\def\mevcc{\ensuremath{\rm \,Me\kern -0.08em V\!/c^2}} 
%\def\gevcc{\ensuremath{{\rm \,Ge\kern -0.08em V\!/}c^2}} 
%\def\mevcc{\ensuremath{{\rm \,Me\kern -0.08em V\!/}c^2}} 


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%% DISTANCE AND AREA %%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\syin {\ensuremath{^{\prime\prime}}\xspace}
\def\inch   {\ensuremath{\rm \,in}\xspace} % \in is taken
\def\ft   {\ensuremath{\rm \,ft}\xspace}
\def\km   {\ensuremath{\rm \,km}\xspace}
\def\m    {\ensuremath{\rm \,m}\xspace}
\def\cm   {\ensuremath{\rm \,cm}\xspace}
\def\cma  {\ensuremath{{\rm \,cm}^2}\xspace}
\def\mm   {\ensuremath{\rm \,mm}\xspace}
\def\mma  {\ensuremath{{\rm \,mm}^2}\xspace}
%\def\mum  {\ensuremath{\rm \,\mum}\xspace}
\def\mum  {\ensuremath{\,\mu\rm m}\xspace}%% mu meter 
%\def\muma {\ensuremath{\rm \,\mum}^2\xspace}
\def\muma       {\ensuremath{\,\mu\rm m^2}\xspace}
\def\nm   {\ensuremath{\rm \,nm}\xspace}
\def\fm   {\ensuremath{\rm \,fm}\xspace}
\def\nm         {\ensuremath{\rm \,nm}\xspace}   %% nanometer
\def\nb         {\ensuremath{\rm \,nb}\xspace}
%
\def\barn{\ensuremath{\rm \,b}\xspace}
\def\barnhyph{\ensuremath{\rm -b}\xspace}
\def\mbarn{\ensuremath{\rm \,mb}\xspace}
\def\mbarnhyph{\ensuremath{\rm -mb}\xspace}
\def\pb {\ensuremath{\rm \,pb}\xspace}
\def\invpb {\ensuremath{\mbox{\,pb}^{-1}}\xspace}
\def\fb   {\ensuremath{\mbox{\,fb}}\xspace}
\def\invfb   {\ensuremath{\mbox{\,fb}^{-1}}\xspace}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%% TIME AND MASS  %%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\mus  {\ensuremath{\rm \,\mus}\xspace}
\def\ns   {\ensuremath{\rm \,ns}\xspace}
\def\ps   {\ensuremath{\rm \,ps}\xspace}
\def\fs   {\ensuremath{\rm \,fs}\xspace}
\def\gm   {\ensuremath{\rm \,g}\xspace}

%%\def\s{\ensuremath{\rm {\,s}}} %% second - this displays nothing  - why?
\def\sec{\ensuremath{\rm {\,s}}\xspace}       %% second - this works - jw 4/19
\def\ms         {\ensuremath{{\rm \,ms}}\xspace}     %% millisecond
\def\mus        {\ensuremath{\,\mu{\rm s}}\xspace}    %% microsecond
\def\ns         {\ensuremath{{\rm \,ns}}\xspace}      %% nanosecond
\def\ps         {\ensuremath{{\rm \,ps}}\xspace}  %% picosecond


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%   MISCELLANEOUS %%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\def\Xrad {\ensuremath{X_0}\xspace}
\def\NIL{\ensuremath{\lambda_{int}}\xspace}
\let\dgr\degrees


%\def\m          {\ensuremath{\rm \,m}}    %% meter
%\def\ma         {\ensuremath{\rm \,m}^2}  %% meter squared
%\def\cm         {\ensuremath{\rm \,cm}}   %% centimeter
%\def\cma        {\ensuremath{\rm \,cm}^2} %% centimeter squared
\def\cms         {\ensuremath{{\rm \,cm}^{-2} {\rm s}^{-1}}\xspace}
%\def\mm         {\ensuremath{\rm \,mm}}   %% millimeter
%\def\mma        {\ensuremath{\rm \,mm}^2} %% millimeter squared
%\def\mum        {\ensuremath{\,\mu\rm m}} %% mu meter
%\def\muma       {\ensuremath{\,\mu\rm m^2}}


\def\mic  {\ensuremath{\,\mu{\rm C}}\xspace}
\def\krad {\ensuremath{\rm \,krad}\xspace}
\def\cmc  {\ensuremath{{\rm \,cm}^3}\xspace}
\def\yr   {\ensuremath{\rm \,yr}\xspace}
\def\hr   {\ensuremath{\rm \,hr}\xspace}
\def\degc {\ensuremath{^\circ}{C}\xspace}
\def\degk {\ensuremath {\rm K}\xspace}
\def\degrees{\ensuremath{^{\circ}}\xspace}
\def\mrad{\ensuremath{\rm \,mrad}\xspace}               %% milliradian
\def\rad{\ensuremath{\rm \,rad}\xspace}
\def\mradhyph{\ensuremath{\rm -mr}\xspace}
%
\def\sx    {\ensuremath{\sigma_x}\xspace}    
\def\sy    {\ensuremath{\sigma_y}\xspace}   
\def\sz    {\ensuremath{\sigma_z}\xspace}    

%\renewcommand{\bar}[1]{\overline{#1}}  

% Some more (from Helen)
%\def\O{{\ensuremath{\cal O}}}  !!! This is a predefined LaTeX symbol !!!
\def\order{{\ensuremath{\cal O}}\xspace}
\def\L{{\ensuremath{\cal L}}\xspace}
\def\calL{{\ensuremath{\cal L}}\xspace}
%\def\S{{\ensuremath{\cal S}}}  !!! This is a predefined LaTeX symbol !!!
\def\calS{{\ensuremath{\cal S}}\xspace}
\def\calA{{\ensuremath{\cal A}}\xspace}
\def\calD{{\ensuremath{\cal D}}\xspace}
\def\calR{{\ensuremath{\cal R}}\xspace}

%% Arrows:
\def\ra                 {\ensuremath{\rightarrow}\xspace}
\def\to                 {\ensuremath{\rightarrow}\xspace}


\newcommand{\stat}{\ensuremath{\mathrm{(stat)}}\xspace}
\newcommand{\syst}{\ensuremath{\mathrm{(syst)}}\xspace}


\def\pep2{PEP-II}
\def\BF{$B$ Factory}
\def\abf {asymmetric \BF}
\def\sx    {\ensuremath{\sigma_x}\xspace}     
\def\sy    {\ensuremath{\sigma_y}\xspace}   
\def\sz    {\ensuremath{\sigma_z}\xspace}


\newcommand{\inverse}{\ensuremath{^{-1}}\xspace}
\newcommand{\dedx}{\ensuremath{\mathrm{d}\hspace{-0.1em}E/\mathrm{d}x}\xspace}
\newcommand{\chisq}{\ensuremath{\chi^2}\xspace}
\newcommand{\delm}{\ensuremath{m_{\dstr}-m_{\dz}}\xspace}
\newcommand{\lum} {\ensuremath{\mathcal{L}}\xspace}

\def\gsim{{~\raise.15em\hbox{$>$}\kern-.85em
          \lower.35em\hbox{$\sim$}~}\xspace}
\def\lsim{{~\raise.15em\hbox{$<$}\kern-.85em
          \lower.35em\hbox{$\sim$}~}\xspace}

\def\qsq                {\ensuremath{q^2}\xspace}


% Data processing
\def\kbytes     {\ensuremath{{\rm \,kbytes}}\xspace}
\def\kbsps      {\ensuremath{{\rm \,kbytes/s}}\xspace}
\def\kbits      {\ensuremath{{\rm \,kbits}}\xspace}
\def\kbsps      {\ensuremath{{\rm \,kbits/s}}\xspace}
\def\mbsps      {\ensuremath{{\rm \,Mbits/s}}\xspace}
\def\mbytes     {\ensuremath{{\rm \,Mbytes}}\xspace}
\def\mbps       {\ensuremath{{\rm \,Mbyte/s}}\xspace}
\def\mbsps      {\ensuremath{{\rm \,Mbytes/s}}\xspace}
\def\gbsps      {\ensuremath{{\rm \,Gbits/s}}\xspace}
\def\gbytes     {\ensuremath{{\rm \,Gbytes}}\xspace}
\def\gbsps      {\ensuremath{{\rm \,Gbytes/s}}\xspace}
\def\tbytes     {\ensuremath{{\rm \,Tbytes}}\xspace}
\def\tbpy       {\ensuremath{{\rm \,Tbytes/yr}}\xspace}
%




% QCD parameters

\newcommand{\as}{\ensuremath{\alpha_{\scriptscriptstyle S}}\xspace}
\newcommand{\MSb}{\ensuremath{\overline{\mathrm{MS}}}\xspace}
\newcommand{\LMSb}{%
  \ensuremath{\Lambda_{\overline{\scriptscriptstyle\mathrm{MS}}}}\xspace
}

% Electroweak parameters

\newcommand{\tw}{\ensuremath{\theta_{\scriptscriptstyle W}}\xspace}
\newcommand{\twb}{%
  \ensuremath{\overline{\theta}_{\scriptscriptstyle W}}\xspace
}
\newcommand{\Afb}[1]{{\ensuremath{A_{\scriptscriptstyle FB}^{#1}}}\xspace}
\newcommand{\gv}[1]{{\ensuremath{g_{\scriptscriptstyle V}^{#1}}}\xspace}
\newcommand{\ga}[1]{{\ensuremath{g_{\scriptscriptstyle A}^{#1}}}\xspace}
\newcommand{\gvb}[1]{{\ensuremath{\overline{g}_{\scriptscriptstyle V}^{#1}}}\xspace}
\newcommand{\gab}[1]{{\ensuremath{\overline{g}_{\scriptscriptstyle A}^{#1}}}\xspace}


% CKM, CP violation

\def\eps{\varepsilon\xspace}
\def\epsK{\varepsilon_K\xspace}
\def\epsB{\varepsilon_B\xspace}
\def\epsp{\varepsilon^\prime_K\xspace}

\def\CP                {\ensuremath{C\!P}\xspace}
%\def\CPT               {\ensuremath{C\!P\!T}\xspace}
\def\CPT               {\ensuremath{C\!PT}\xspace} % Looks better without \!

\def\epstag  {\ensuremath{\varepsilon_{\rm tag}}\xspace}
\def\tagfac  {\ensuremath{\epstag(1-2w)^2}\xspace}

\def\rhobar {\ensuremath{\overline \rho}\xspace}
\def\etabar {\ensuremath{\overline \eta}\xspace}
%\def\paramest {\ensuremath{{\hat A}, {\hat \rho}, {\hat \eta} }}
%\def\ssparamest {\ensuremath{{\hat A}, {\hat {\sin 2 \alpha}}, 
%{\hat {\sin 2 \beta}} }}
\def\meas {\ensuremath{|V_{cb}|, |\frac{V_{ub}}{V_{cb}}|, 
|\varepsilon_K|, \Delta m_{B_d}}\xspace}

\def\Vud  {\ensuremath{|V_{ud}|}\xspace}
\def\Vcd  {\ensuremath{|V_{cd}|}\xspace}
\def\Vtd  {\ensuremath{|V_{td}|}\xspace}
\def\Vus  {\ensuremath{|V_{us}|}\xspace}
\def\Vcs  {\ensuremath{|V_{cs}|}\xspace}
\def\Vts  {\ensuremath{|V_{ts}|}\xspace}
\def\Vub  {\ensuremath{|V_{ub}|}\xspace}
\def\Vcb  {\ensuremath{|V_{cb}|}\xspace}
\def\Vtb  {\ensuremath{|V_{tb}|}\xspace}

%\def\sa{${\sin\! 2 \alpha  }$\xspace}
%\def\sb{${\sin\! 2 \beta   }$\xspace}
%\def\sg{${\sin\! 2 \gamma  }$\xspace}

% added by Gautier for tagging, tagmix, and sin2beta
\def\stwoa{\ensuremath{\sin\! 2 \alpha  }\xspace}
\def\stwob{\ensuremath{\sin\! 2 \beta   }\xspace}
\def\stwog{\ensuremath{\sin\! 2 \gamma  }\xspace}
\def\mistag{\ensuremath{w}\xspace}
\def\dilution{\ensuremath{\cal D}\xspace}
\def\deltaz{\ensuremath{{\rm \Delta}z}\xspace}
\def\deltat{\ensuremath{{\rm \Delta}t}\xspace}
\def\deltamd{\ensuremath{{\rm \Delta}m_d}\xspace}

\newcommand{\fsubd}{\ensuremath{f_D}}\xspace
\newcommand{\fds}{\ensuremath{f_{D_s}}\xspace}
\newcommand{\fsubb}{\ensuremath{f_B}\xspace}
\newcommand{\fbd}{\ensuremath{f_{B_d}}\xspace}
\newcommand{\fbs}{\ensuremath{f_{B_s}}\xspace}
\newcommand{\bsubb}{\ensuremath{B_B}\xspace}
\newcommand{\bbd}{\ensuremath{B_{B_d}}\xspace}
\newcommand{\bbs}{\ensuremath{B_{B_s}}\xspace}
\newcommand{\rgbb}{\ensuremath{\hat{B}_B}\xspace}
\newcommand{\rgbbd}{\ensuremath{\hat{B}_{B_d}}\xspace}
\newcommand{\rgbbs}{\ensuremath{\hat{B}_{B_s}}\xspace}
\newcommand{\rgbk}{\ensuremath{\hat{B}_K}\xspace}
\newcommand{\lqcd}{\ensuremath{\Lambda_{\mathrm{QCD}}}\xspace}

%\newcommand{\eqref}[1]{Eq.~(\ref{eq:#1})}
\newcommand{\secref}[1]{Section~\ref{sec:#1}}
\newcommand{\subsecref}[1]{Section~\ref{subsec:#1}}
\newcommand{\figref}[1]{Figure~\ref{fig:#1}}
\newcommand{\tabref}[1]{Table~\ref{tab:#1}}






% Journal References

% These bases are useful for ``submitted to'' when no volume is needed
\newcommand{\epjBase}        {Eur.\ Phys.\ Jour.\xspace}
\newcommand{\jprlBase}       {Phys.\ Rev.\ Lett.\xspace}
\newcommand{\jprBase}        {Phys.\ Rev.\xspace}
\newcommand{\jplBase}        {Phys.\ Lett.\xspace}
\newcommand{\nimBaseA}       {Nucl.\ Instr.\ Meth.\xspace}
\newcommand{\nimBaseB}       {Nucl.\ Instr.\ and Meth.\xspace}
\newcommand{\nimBaseC}       {Nucl.\ Instr.\ and Methods\xspace}
\newcommand{\nimBaseD}       {Nucl.\ Instrum.\ Methods\xspace}
\newcommand{\npBase}         {Nucl.\ Phys.\xspace}
\newcommand{\zpBase}         {Z.\ Phys.\xspace}


\newcommand{\apas}      [1]  {{Acta Phys.\ Austr.\ Suppl.\ {\bf #1}}}
\newcommand{\app}       [1]  {{Acta Phys.\ Polon.\ {\bf #1}}}
\newcommand{\ace}       [1]  {{Adv.\ Cry.\ Eng.\ {\bf #1}}}
\newcommand{\anp}       [1]  {{Adv.\ Nucl.\ Phys.\ {\bf #1}}}
\newcommand{\annp}      [1]  {{Ann.\ Phys.\ {\bf #1}}}
\newcommand{\araa}      [1]  {{Ann.\ Rev.\ Astr.\ Ap.\ {\bf #1}}}
\newcommand{\arnps}     [1]  {{Ann.\ Rev.\ Nucl.\ Part.\ Sci.\ {\bf #1}}}
\newcommand{\arns}      [1]  {{Ann.\ Rev.\ Nucl.\ Sci.\ {\bf #1}}}
\newcommand{\appopt}    [1]  {{Appl.\ Opt.\ {\bf #1}}}
\newcommand{\japj}      [1]  {{Astro.\ Phys.\ J.\ {\bf #1}}}
\newcommand{\baps}      [1]  {{Bull.\ Am.\ Phys.\ Soc.\ {\bf #1}}}
\newcommand{\seis}      [1]  {{Bull.\ Seismological Soc.\ of Am.\ {\bf #1}}}
\newcommand{\cmp}       [1]  {{Commun.\ Math.\ Phys.\ {\bf #1}}}
\newcommand{\cnpp}      [1]  {{Comm.\ Nucl.\ Part.\ Phys.\ {\bf #1}}}
\newcommand{\cpc}       [1]  {{Comput.\ Phys.\ Commun.\ {\bf #1}}}
\newcommand{\epj}       [1]  {\epjBase\ {\bf #1}}
%\newcommand{\epjc}      [1]  {{Eur.\ Phys.\ Jour.\ C~{\bf #1}}}
\newcommand{\epjc}      [1]  {\epjBase\ C~{\bf #1}}
\newcommand{\fizika}    [1]  {{Fizika~{\bf #1}}}
\newcommand{\fp}        [1]  {{Fortschr.\ Phys.\ {\bf #1}}}
\newcommand{\ited}      [1]  {{IEEE Trans.\ Electron.\ Devices~{\bf #1}}}
\newcommand{\itns}      [1]  {{IEEE Trans.\ Nucl.\ Sci.\ {\bf #1}}}
\newcommand{\ijqe}      [1]  {{IEEE J.\ Quantum Electron.\ {\bf #1}}}
\newcommand{\ijmp}      [1]  {{Int.\ Jour.\ Mod.\ Phys.\ {\bf #1}}}
\newcommand{\ijmpa}     [1]  {{Int.\ J.\ Mod.\ Phys.\ {\bf A{\bf #1}}}}
\newcommand{\jl}        [1]  {{JETP Lett.\ {\bf #1}}}
\newcommand{\jetp}      [1]  {{JETP~{\bf #1}}}
\newcommand{\jpg}       [1]  {{J.\ Phys.\ {\bf G{\bf #1}}}}
\newcommand{\jap}       [1]  {{J.\ Appl.\ Phys.\ {\bf #1}}}
\newcommand{\jmp}       [1]  {{J.\ Math.\ Phys.\ {\bf #1}}}
\newcommand{\jmes}      [1]  {{J.\ Micro.\ Elec.\ Sys.\ {\bf #1}}}
%\newcommand{\josa}      [1]  {{J.\ Opt.\ Soc.\ Am.\ {\bf #1}}}
\newcommand{\mpl}       [1]  {{Mod.\ Phys.\ Lett.\ {\bf #1}}}
%%\newcommand{\prl}       [1]  {{Phys.\ Rev.\ Lett.\ {\bf #1}}} % dbm

%\newcommand{\nim}       [1]  {{Nucl.\ Instr.\ and Methods~{\bf #1}}}
\newcommand{\nim}       [1]  {\nimBaseC~{\bf #1}}
%\newcommand{\nima}      [1]  {{Nucl.\ Instr.\ Methods~{\bf A{\bf #1}}}}
\newcommand{\nima}      [1]  {\nimBaseC~A~{\bf #1}}

%\newcommand{\np}        [1]  {{Nucl.\ Phys.\ {\bf #1}}}
\newcommand{\np}        [1]  {\npBase\ {\bf #1}}
%\newcommand{\npb}       [1]  {{Nucl.\ Phys.\ {\bf B{\bf #1}}}}
\newcommand{\npb}       [1]  {\npBase\ B~{\bf #1}}
\newcommand{\npps}      [1]  {{Nucl.\ Phys.\ Proc.\ Suppl.\ {\bf #1}}}
\newcommand{\npaps}     [1]  {{Nucl.\ Phys.\ A~Proc.\ Suppl.\ {\bf #1}}}
\newcommand{\npbps}     [1]  {{Nucl.\ Phys.\ B~Proc.\ Suppl.\ {\bf #1}}}

\newcommand{\ncim}      [1]  {{Nuo.\ Cim.\ {\bf #1}}}
\newcommand{\optl}      [1]  {{Opt.\ Lett.\ {\bf #1}}}
\newcommand{\optcom}    [1]  {{Opt.\ Commun.\ {\bf #1}}}
\newcommand{\partacc}   [1]  {{Particle Acclerators~{\bf #1}}}
\newcommand{\pan}       [1]  {{Phys.\ Atom.\ Nuclei~{\bf #1}}}
\newcommand{\pflu}      [1]  {{Physics of Fluids~{\bf #1}}}
\newcommand{\ptoday}    [1]  {{Physics Today~{\bf #1}}}

%\newcommand{\jpl}       [1]  {{Phys.\ Lett.\ {\bf #1}}}      % dbm
\newcommand{\jpl}       [1]  {\jplBase\ {\bf #1}}
%\newcommand{\plb}       [1]  {{Phys.\ Lett.\ B~{\bf #1}}}   % dbm
\newcommand{\plb}       [1]  {\jplBase\ B~{\bf #1}}
\newcommand{\prep}      [1]  {{Phys.\ Rep.\ {\bf #1}}}
%\newcommand{\jprl}      [1]  {{Phys.\ Rev.\ Lett.\ {\bf #1}}} % dbm
\newcommand{\jprl}      [1]  {\jprlBase\ {\bf #1}}
%\newcommand{\pr}        [1]  {{Phys.\ Rev.\ {\bf #1}}}
\newcommand{\pr}        [1]  {\jprBase\ {\bf #1}}
%\newcommand{\jpra}      [1]  {{Phys.\ Rev.\ A~{\bf #1}}}
\newcommand{\jpra}      [1]  {\jprBase\ A~{\bf #1}}
%\newcommand{\jprd}      [1]  {{Phys.\ Rev.\ D~{\bf #1}}}
\newcommand{\jprd}      [1]  {\jprBase\ D~{\bf #1}}
%\newcommand{\jpre}      [1]  {{Phys.\ Rev.\ E~{\bf #1}}}
\newcommand{\jpre}      [1]  {\jprBase\ E~{\bf #1}}
%%\newcommand{\prd}       [1]  {{\sl Phys. Rev.~{\bf D{\bf #1}}}}

\newcommand{\prsl}      [1]  {{Proc.\ Roy.\ Soc.\ Lond.\ {\bf #1}}}
\newcommand{\ppnp}      [1]  {{Prog.\ Part.\ Nucl.\ Phys.\ {\bf #1}}}
\newcommand{\progtp}    [1]  {{Prog.\ Th.\ Phys.\ {\bf #1}}}
\newcommand{\rpp}       [1]  {{Rep.\ Prog.\ Phys.\ {\bf #1}}}
\newcommand{\jrmp}      [1]  {{Rev.\ Mod.\ Phys.\ {\bf #1}}}  % dbm
\newcommand{\rsi}       [1]  {{Rev.\ Sci.\ Instr.\ {\bf #1}}}
\newcommand{\sci}       [1]  {{Science~{\bf #1}}}
\newcommand{\sjnp}      [1]  {{Sov.\ J.\ Nucl.\ Phys.\ {\bf #1}}}
\newcommand{\spd}       [1]  {{Sov.\ Phys.\ Dokl.\ {\bf #1}}}
\newcommand{\spu}       [1]  {{Sov.\ Phys.\ Usp.\ {\bf #1}}}
\newcommand{\tmf}       [1]  {{Teor.\ Mat.\ Fiz.\ {\bf #1}}}
\newcommand{\yf}        [1]  {{Yad.\ Fiz.\ {\bf #1}}}
%\newcommand{\zp}        [1]  {{Z.\ Phys.\ {\bf #1}}}
\newcommand{\zp}        [1]  {\zpBase\ {\bf #1}}
%\newcommand{\zpc}       [1]  {{Z.\ Phys.\ C~{\bf #1}}}
\newcommand{\zpc}       [1]  {\zpBase\ C~{\bf #1}}
\newcommand{\zpr}       [1]  {{ZhETF Pis.\ Red.\ {\bf #1}}}

\newcommand{\hepex}     [1]  {hep-ex/{#1}}
\newcommand{\hepph}     [1]  {hep-ph/{#1}}
\newcommand{\hepth}     [1]  {hep-th/{#1}}


%%%%%%%%%%%%%%%%%%%% SOFTWARE PACKAGES %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\def\aslund     {\mbox{\tt Aslund}\xspace}
\def\bbsim      {\mbox{\tt BBsim}\xspace}
\def\beast      {\mbox{\tt Beast}\xspace}
\def\beget      {\mbox{\tt Beget}\xspace}
\def\Bta        {\mbox{\tt Beta}\xspace}
\def\betakfit   {\mbox{\tt BetaKfit}\xspace}
\def\cornelius  {\mbox{\tt Cornelius}\xspace}
\def\evtgen     {\mbox{\tt EvtGen}\xspace}
\def\euclid     {\mbox{\tt Euclid}\xspace}
\def\fitver     {\mbox{\tt FitVer}\xspace}
\def\fluka      {\mbox{\tt Fluka}\xspace}
\def\fortran    {\mbox{\tt Fortran}\xspace}
\def\gcalor     {\mbox{\tt GCalor}\xspace}
\def\geant      {\mbox{\tt GEANT}\xspace}
\def\gheisha    {\mbox{\tt Gheisha}\xspace}
\def\hemicosm   {\mbox{\tt HemiCosm}\xspace}
\def\hepevt     {\mbox{\tt{/HepEvt/}}\xspace}
%\def\jetset     {\mbox{\tt Jetset \hspace{-0.5em}7.4}\xspace}
\def\jetset     {\mbox{\tt Jetset}\xspace}
\def\koralb     {\mbox{\tt KoralB}\xspace}
\def\minuit     {\mbox{\tt Minuit}\xspace}
\def\objegs     {\mbox{\tt Objegs}\xspace}
\def\paw        {\mbox{\tt Paw}\xspace}
\def\root       {\mbox{\tt Root}\xspace}
\def\squaw      {\mbox{\tt Squaw}\xspace}
\def\stdhep     {\mbox{\tt StdHep}\xspace}
\def\trackerr   {\mbox{\tt TrackErr}\xspace}
\def\turtle     {\mbox{\tt Decay~Turtle}\xspace}

%%\input mysymbols
\newcommand{\bbr}{{\sc BaBar} }
\newcommand{\matel}[3]{\langle #1|#2|#3\rangle}
\newcommand{\aver}[1]{\langle #1\rangle}
\newcommand{\rb}[1]{\raisebox{1.1ex}[-1.1ex]{#1}}
\newcommand{\rbf}[1]{\raisebox{1.5ex}[-1.5ex]{#1}}
\newcommand {\dtokp} {\ensuremath{\Dz\rightarrow K\pi}}
\newcommand {\dtokppp} {\ensuremath{\Dz\rightarrow K3\pi}}
\newcommand {\dtokppz} {\ensuremath{\Dz\rightarrow K\pi\piz}}
\newcommand {\dtokspp} {\ensuremath{\Dz\rightarrow \KS\pi\pi}}
\newcommand {\dctoksp} {\ensuremath{\Dp\rightarrow \KS\pi}}
\newcommand {\dctokpp} {\ensuremath{\Dp\rightarrow K\pi\pi}}
\newcommand {\dctokpppz} {\ensuremath{\Dp\rightarrow K\pi\pi\piz}}
\newcommand {\dctoksppp} {\ensuremath{\Dp\rightarrow \KS\pi\pi\pi}}
\newcommand {\dctoksppz} {\ensuremath{\Dp\rightarrow \KS\pi\piz}}
\newcommand {\dstarztodzgam} {\ensuremath{\Dstarz\rightarrow \Dz\gamma}}
\newcommand {\dstarztodzpiz} {\ensuremath{\Dstarz\rightarrow \Dz\piz}}
\newcommand {\Del}{\ensuremath{\Delta E}\hbox{ }}
%BAD: Capitalization within sentences! Spell it out!  \newcommand {\semix}{Semi-exclusive\hbox{ }}
\def\B      {\ensuremath{B}\hbox{ }}
\def\Bp      {\ensuremath{B^{+}}\hbox{ }}
\newcommand {\Brxlnu}{\ensuremath{B_{recoil} \rightarrow X \ell \bar{\nu}}}
\newcommand {\Brxclnu}{\ensuremath{B_{recoil} \rightarrow X_c \ell \bar{\nu}}}
\newcommand {\Brxulnu}{\ensuremath{B_{recoil} \rightarrow X_u \ell \bar{\nu}}}
\newcommand {\Bxlnu}{\ensuremath{\Bb \rightarrow X \ell \bar{\nu}}}
\newcommand {\Bxclnu}{\ensuremath{\Bb \rightarrow X_c \ell \bar{\nu}}}
\newcommand {\Bxulnu}{\ensuremath{\Bb \rightarrow X_u \ell \bar{\nu}}}
\newcommand {\Bzxulnu}{\ensuremath{\Bzb \rightarrow X_u \ell \bar{\nu}}}
\newcommand {\Bpxulnu}{\ensuremath{\Bm \rightarrow X_u \ell \bar{\nu}}}
\newcommand {\Bpxlnu}{\ensuremath{\Bm \rightarrow X \ell \bar{\nu}}}
\newcommand {\Bzxclnu}{\ensuremath{\Bzb \rightarrow X_c \ell \bar{\nu}}}
\newcommand {\Bzxlnu}{\ensuremath{\Bzb \rightarrow X \ell \bar{\nu}}}
\newcommand {\Bpxclnu}{\ensuremath{\Bm \rightarrow X_c \ell \bar{\nu}}}
\newcommand {\bulnu}{\ensuremath{\b \rightarrow \u \ell \bar{\nu}}}
\newcommand {\bclnu}{\ensuremath{\b \rightarrow \c \ell \bar{\nu}}}
\newcommand {\bu}{\ensuremath{\b \rightarrow \u}}
\newcommand {\bc}{\ensuremath{\b \rightarrow \c}}
\newcommand {\Nu}{\ensuremath{N_u}}
\newcommand {\Mx}{\ensuremath{m_{X}}}
%\newcommand {\rusl}{\ensuremath{R_{u/sl}}}
\newcommand {\rusl}{\ensuremath{R_{u}}}
\newcommand {\mX}{\ensuremath{m_{X}}}
\newcommand {\mmiss}{\ensuremath{m_{miss}^2}}
\newcommand {\prmmiss}{\ensuremath{m_{miss,PR}^2}}
\newcommand {\breco}{\ensuremath{B_{reco}}}
\newcommand {\brecoil}{\ensuremath{B_{recoil}}}
\newcommand {\D}{\ensuremath{D}}
\newcommand {\lbar}{\ensuremath{\overline{\Lambda}}}
\newcommand {\lone}{\ensuremath{\lambda_1}}
\newcommand{\beq}{\begin{equation}}
\newcommand{\beqa}{\begin{eqnarray}}
\newcommand{\beqn}{\begin{eqnarray}}
\newcommand{\eeq}{\end{equation}}
\newcommand{\eeqa}{\end{eqnarray}}
\newcommand{\eeqn}{\end{eqnarray}}
\makeatletter
\def\slash#1{{\mathpalette\c@ncel{#1}}} % TeXbook, bottom of p360
\makeatother
\newcommand{\Dslash}{\slash D}%{\rlap{D}\hbox{\hspace{2pt}/}}
\def\bcln{\mbox{$B \to X_c\,l \,\bar\nu$}}
\newcommand{\gene}{{\it Generic\hbox{ }}}
\newcommand{\cocktail}{{\it Cocktail\hbox{ }}}

\def\cerenkov{$\check{\rm C}{\rm erenkov}$ }
\def\emc {{\sc Emc}}
\def\drc {{\sc Drc}}
\def\dch {{\sc Dch}}
\def\ifr {{\sc Ifr}}
\def\svt {{\sc Svt}}

% GENERAL ENGLISH TERMS AND UTILITIES
% General english terms:
\def\eg                 {{\it e.g.,}}
\def\etal               {{\it et~al.,}}
\def\etalc              {{\it et~al.\/}} %for use in refs with collab name in ()s
\def\etc                {{\it etc.\/}\hbox{}}
\def\ie                 {{\it i.e.}}
\def\vs                 {{\it vs.\/}\hbox{}}
%\def\editor            {{~ed.}\hbox{}}
%\def\editors           {{~eds.}\hbox{}}

% -- Get the results
%%\input results.v03.tex
\def\allsemil{  32210 \pm    233} 
\def\allbgsl{ 2228 \pm   16} 
\def\allslsub{29982 \pm  233} 
\def\allepssl{ 1.13 \pm 0.01} 
\def\allnu{  175 \pm   21} 
\def\allbgc{   90 \pm    5} 
\def\allbgo{    3 \pm    5} 
\def\allepsu{0.326} 
\def\allepsmx{0.770} 
\def\allbrbr{2.06 \pm 0.25} 
\def\allbrbrerrmc{0.0009} 
\def\bchsemil{  20583 \pm    191} 
\def\bchbgsl{ 1503 \pm   14} 
\def\bchslsub{19080 \pm  191} 
\def\bchepssl{ 1.13 \pm 0.02} 
\def\bchnu{  100 \pm   16} 
\def\bchbgc{   67 \pm    4} 
\def\bchbgo{    3 \pm    3} 
\def\bchepsu{0.327} 
\def\bchepsmx{0.777} 
\def\bchbrbr{1.82 \pm 0.30} 
\def\bchbrbrerrmc{0.0012} 
\def\bnesemil{  11582 \pm    133} 
\def\bnebgsl{  720 \pm    8} 
\def\bneslsub{10862 \pm  133} 
\def\bneepssl{ 1.13 \pm 0.02} 
\def\bnenu{   76 \pm   15} 
\def\bnebgc{   22 \pm    3} 
\def\bnebgo{    0 \pm    8} 
\def\bneepsu{0.324} 
\def\bneepsmx{0.758} 
\def\bnebrbr{2.53 \pm 0.50} 
\def\bnebrbrerrmc{0.0018} 
\def\musemil{  13934 \pm    157} 
\def\mubgsl{ 1312 \pm   15} 
\def\muslsub{12622 \pm  157} 
\def\muepssl{ 1.14 \pm 0.02} 
\def\munu{   73 \pm   15} 
\def\mubgc{   41 \pm    4} 
\def\mubgo{    7 \pm    4} 
\def\muepsu{0.350} 
\def\muepsmx{0.788} 
\def\mubrbr{1.83 \pm 0.37} 
\def\mubrbrerrmc{0.0014} 
\def\elesemil{  18261 \pm    173} 
\def\elebgsl{  941 \pm    9} 
\def\eleslsub{17320 \pm  173} 
\def\eleepssl{ 1.12 \pm 0.02} 
\def\elenu{  101 \pm   15} 
\def\elebgc{   46 \pm    3} 
\def\elebgo{    0 \pm    1} 
\def\eleepsu{0.308} 
\def\eleepsmx{0.750} 
\def\elebrbr{2.27 \pm 0.34} 
\def\elebrbrerrmc{0.0012} 
\def\qonesemil{  32210 \pm    233} 
\def\qonebgsl{ 2228 \pm   16} 
\def\qoneslsub{29982 \pm  233} 
\def\qoneepssl{ 1.13 \pm 0.01} 
\def\qonenu{  252 \pm   27} 
\def\qonebgc{  169 \pm    9} 
\def\qonebgo{    3 \pm    6} 
\def\qoneepsu{0.380} 
\def\qoneepsmx{0.761} 
\def\qonebrbr{2.58 \pm 0.28} 
\def\qonebrbrerrmc{0.0011} 
\def\sbonesemil{   4491 \pm     68} 
\def\sbonebgsl{  304 \pm    5} 
\def\sboneslsub{ 4187 \pm   68} 
\def\sboneepssl{ 1.13 \pm 0.02} 
\def\sbonenu{   20 \pm    7} 
\def\sbonebgc{   12 \pm    1} 
\def\sbonebgo{    0 \pm    1} 
\def\sboneepsu{0.326} 
\def\sboneepsmx{0.767} 
\def\sbonebrbr{1.68 \pm 0.57} 
\def\sbonebrbrerrmc{0.0010} 
\def\sbtwosemil{  13298 \pm    141} 
\def\sbtwobgsl{  925 \pm   10} 
\def\sbtwoslsub{12373 \pm  141} 
\def\sbtwoepssl{ 1.13 \pm 0.01} 
\def\sbtwonu{   68 \pm   13} 
\def\sbtwobgc{   41 \pm    3} 
\def\sbtwobgo{    3 \pm    2} 
\def\sbtwoepsu{0.326} 
\def\sbtwoepsmx{0.771} 
\def\sbtwobrbr{1.94 \pm 0.37} 
\def\sbtwobrbrerrmc{0.0010} 
\def\sbthreesemil{  14122 \pm    170} 
\def\sbthreebgsl{  978 \pm   12} 
\def\sbthreeslsub{13144 \pm  170} 
\def\sbthreeepssl{ 1.13 \pm 0.01} 
\def\sbthreenu{   86 \pm   15} 
\def\sbthreebgc{   34 \pm    3} 
\def\sbthreebgo{    0 \pm    3} 
\def\sbthreeepsu{0.326} 
\def\sbthreeepsmx{0.770} 
\def\sbthreebrbr{2.31 \pm 0.41} 
\def\sbthreebrbrerrmc{0.0009} 
\def\runonesemil{   8677 \pm    121} 
\def\runonebgsl{  600 \pm    8} 
\def\runoneslsub{ 8077 \pm  121} 
\def\runoneepssl{ 1.13 \pm 0.01} 
\def\runonenu{   46 \pm   13} 
\def\runonebgc{   27 \pm    2} 
\def\runonebgo{    0 \pm    6} 
\def\runoneepsu{0.326} 
\def\runoneepsmx{0.770} 
\def\runonebrbr{2.01 \pm 0.55} 
\def\runonebrbrerrmc{0.0013} 
\def\runtwosemil{  23532 \pm    200} 
\def\runtwobgsl{ 1628 \pm   14} 
\def\runtwoslsub{21904 \pm  200} 
\def\runtwoepssl{ 1.13 \pm 0.01} 
\def\runtwonu{  128 \pm   18} 
\def\runtwobgc{   62 \pm    4} 
\def\runtwobgo{    4 \pm    4} 
\def\runtwoepsu{0.326} 
\def\runtwoepsmx{0.770} 
\def\runtwobrbr{2.07 \pm 0.29} 
\def\runtwobrbrerrmc{0.0009} 
\def\lomxsemil{  32210 \pm    233} 
\def\lomxbgsl{ 2228 \pm   16} 
\def\lomxslsub{29982 \pm  233} 
\def\lomxepssl{ 1.13 \pm 0.01} 
\def\lomxnu{  143 \pm   18} 
\def\lomxbgc{   54 \pm    3} 
\def\lomxbgo{    2 \pm    3} 
\def\lomxepsu{0.326} 
\def\lomxepsmx{0.683} 
\def\lomxbrbr{1.89 \pm 0.24} 
\def\lomxbrbrerrmc{0.0008} 
\def\himxsemil{  32210 \pm    233} 
\def\himxbgsl{ 2228 \pm   16} 
\def\himxslsub{29982 \pm  233} 
\def\himxepssl{ 1.13 \pm 0.01} 
\def\himxnu{  214 \pm   26} 
\def\himxbgc{  145 \pm    9} 
\def\himxbgo{    4 \pm    5} 
\def\himxepsu{0.326} 
\def\himxepsmx{0.826} 
\def\himxbrbr{2.35 \pm 0.28} 
\def\himxbrbrerrmc{0.0011} 

%%\input vubresults.v03.tex
\def\allbrbrVal{2.06}
\def\allbrbrEcstat{0.25}
\def\allbrbrEsyst{0.23}
\def\allbrbrEthHi{0.36}
\def\allbrbrEthLo{0.36}
\def\allbr{ 2.24}
\def\allbrE{ 0.27}
\def\allbrEsyst{ 0.26}
\def\allbrEthHi{ 0.39}
\def\allbrEthLo{ 0.39}
\def\allvub{ 4.62}
\def\allvubE{ 0.28}
\def\allvubEsyst{ 0.27}
\def\allvubEthHi{ 0.40}
\def\allvubEthLo{ 0.40}
\def\allvubEpert{ 0.09}
\def\allvubEhomb{ 0.24}
\def\allvubEtheo{ 0.26}

%%\input neweff.tex
\renewcommand{\allepsu}{34.2}
\renewcommand{\allepsmx}{73.3}

\renewcommand{\lomxepsu}{0.341}
\renewcommand{\lomxepsmx}{0.657}

\renewcommand{\himxepsu}{0.335}
\renewcommand{\himxepsmx}{0.799}

\renewcommand{\bneepsu}{0.340}
\renewcommand{\bneepsmx}{0.742}

\renewcommand{\bchepsu}{0.344}
\renewcommand{\bchepsmx}{0.728}

\renewcommand{\eleepsu}{0.325}
\renewcommand{\eleepsmx}{0.699}

\renewcommand{\muepsu}{0.359}
\renewcommand{\muepsmx}{0.780}

\renewcommand{\runoneepsu}{0.342}
\renewcommand{\runoneepsmx}{0.733}

\renewcommand{\runtwoepsu}{0.342}
\renewcommand{\runtwoepsmx}{0.733}

\renewcommand{\sboneepsu}{0.342}
\renewcommand{\sboneepsmx}{0.735}

\renewcommand{\sbtwoepsu}{0.342}
\renewcommand{\sbtwoepsmx}{0.732}

\renewcommand{\sbthreeepsu}{0.342}
\renewcommand{\sbthreeepsmx}{0.733}


%all:         new epsmx 0.732802  new epsu 0.342297
%allmx1.4:    new epsmx 0.656684  new epsu 0.34094
%allmx1.7:    new epsmx 0.799345  new epsu 0.334797
%b0:          new epsmx 0.742017  new epsu 0.339872
%bch:         new epsmx 0.728222  new epsu 0.343662
%ele:         new epsmx 0.699116  new epsu 0.325158
%mu:          new epsmx 0.780338  new epsu 0.359022
%run1:        new epsmx 0.733017  new epsu 0.342238
%run2:        new epsmx 0.732909  new epsu 0.342254
%sb1:         new epsmx 0.735022  new epsu 0.341702
%sb2:         new epsmx 0.732419  new epsu 0.342423
%sb3:         new epsmx 0.73288   new epsu 0.342315

%\setlength{\textwidth}{16.5cm}
%\setlength{\textheight}{22.2cm}
%\setlength{\hoffset}{-2.0cm}
%\setlength{\voffset}{-2.3cm}

\def\isprl{1}

% This is needed to format the full author list
\long\def\inst#1{\par\nobreak\kern 4pt\nobreak
    {\it #1}\par\vskip 10pt plus 3pt minus 3pt}

\def\varia1c-a{666}

\begin{document}

\title[Short Title] {Measurement   of   the    Inclusive   Charmless
Semileptonic Branching Ratio \\ of \mathversion{bold}$B$ Mesons and
Determination of \mathversion{bold}$|V_{ub}|$}

%%\input authors_apr2003
%% author list as of 02-Apr-2003 (577 authors)
%
\author{B.~Aubert}
\author{R.~Barate}
\author{D.~Boutigny}
\author{J.-M.~Gaillard}
\author{A.~Hicheur}
\author{Y.~Karyotakis}
\author{J.~P.~Lees}
\author{P.~Robbe}
\author{V.~Tisserand}
\author{A.~Zghiche}
\affiliation{Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France }
\author{A.~Palano}
\author{A.~Pompili}
\affiliation{Universit\`a di Bari, Dipartimento di Fisica and INFN, I-70126 Bari, Italy }
\author{J.~C.~Chen}
\author{N.~D.~Qi}
\author{G.~Rong}
\author{P.~Wang}
\author{Y.~S.~Zhu}
\affiliation{Institute of High Energy Physics, Beijing 100039, China }
\author{G.~Eigen}
\author{I.~Ofte}
\author{B.~Stugu}
\affiliation{University of Bergen, Inst.\ of Physics, N-5007 Bergen, Norway }
\author{G.~S.~Abrams}
\author{A.~W.~Borgland}
\author{A.~B.~Breon}
\author{D.~N.~Brown}
\author{J.~Button-Shafer}
\author{R.~N.~Cahn}
\author{E.~Charles}
\author{C.~T.~Day}
\author{M.~S.~Gill}
\author{A.~V.~Gritsan}
\author{Y.~Groysman}
\author{R.~G.~Jacobsen}
\author{R.~W.~Kadel}
\author{J.~Kadyk}
\author{L.~T.~Kerth}
\author{Yu.~G.~Kolomensky}
\author{J.~F.~Kral}
\author{G.~Kukartsev}
\author{C.~LeClerc}
\author{M.~E.~Levi}
\author{G.~Lynch}
\author{L.~M.~Mir}
\author{P.~J.~Oddone}
\author{T.~J.~Orimoto}
\author{M.~Pripstein}
\author{N.~A.~Roe}
\author{A.~Romosan}
\author{M.~T.~Ronan}
\author{V.~G.~Shelkov}
\author{A.~V.~Telnov}
\author{W.~A.~Wenzel}
\affiliation{Lawrence Berkeley National Laboratory and University of California, Berkeley, CA 94720, USA }
\author{K.~Ford}
\author{T.~J.~Harrison}
\author{C.~M.~Hawkes}
\author{D.~J.~Knowles}
\author{S.~E.~Morgan}
\author{R.~C.~Penny}
\author{A.~T.~Watson}
\author{N.~K.~Watson}
\affiliation{University of Birmingham, Birmingham, B15 2TT, United Kingdom }
\author{T.~Deppermann}
\author{K.~Goetzen}
\author{H.~Koch}
\author{B.~Lewandowski}
\author{M.~Pelizaeus}
\author{K.~Peters}
\author{H.~Schmuecker}
\author{M.~Steinke}
\affiliation{Ruhr Universit\"at Bochum, Institut f\"ur Experimentalphysik 1, D-44780 Bochum, Germany }
\author{N.~R.~Barlow}
\author{J.~T.~Boyd}
\author{N.~Chevalier}
\author{W.~N.~Cottingham}
\author{M.~P.~Kelly}
\author{T.~E.~Latham}
\author{C.~Mackay}
\author{F.~F.~Wilson}
\affiliation{University of Bristol, Bristol BS8 1TL, United Kingdom }
\author{K.~Abe}
\author{T.~Cuhadar-Donszelmann}
\author{C.~Hearty}
\author{T.~S.~Mattison}
\author{J.~A.~McKenna}
\author{D.~Thiessen}
\affiliation{University of British Columbia, Vancouver, BC, Canada V6T 1Z1 }
\author{P.~Kyberd}
\author{A.~K.~McKemey}
\affiliation{Brunel University, Uxbridge, Middlesex UB8 3PH, United Kingdom }
\author{V.~E.~Blinov}
\author{A.~D.~Bukin}
\author{V.~B.~Golubev}
\author{V.~N.~Ivanchenko}
\author{E.~A.~Kravchenko}
\author{A.~P.~Onuchin}
\author{S.~I.~Serednyakov}
\author{Yu.~I.~Skovpen}
\author{E.~P.~Solodov}
\author{A.~N.~Yushkov}
\affiliation{Budker Institute of Nuclear Physics, Novosibirsk 630090, Russia }
\author{D.~Best}
\author{M.~Chao}
\author{D.~Kirkby}
\author{A.~J.~Lankford}
\author{M.~Mandelkern}
\author{S.~McMahon}
\author{R.~K.~Mommsen}
\author{W.~Roethel}
\author{D.~P.~Stoker}
\affiliation{University of California at Irvine, Irvine, CA 92697, USA }
\author{C.~Buchanan}
\affiliation{University of California at Los Angeles, Los Angeles, CA 90024, USA }
\author{D.~del Re}
\author{H.~K.~Hadavand}
\author{E.~J.~Hill}
\author{D.~B.~MacFarlane}
\author{H.~P.~Paar}
\author{Sh.~Rahatlou}
\author{U.~Schwanke}
\author{V.~Sharma}
\affiliation{University of California at San Diego, La Jolla, CA 92093, USA }
\author{J.~W.~Berryhill}
\author{C.~Campagnari}
\author{B.~Dahmes}
\author{N.~Kuznetsova}
\author{S.~L.~Levy}
\author{O.~Long}
\author{A.~Lu}
\author{M.~A.~Mazur}
\author{J.~D.~Richman}
\author{W.~Verkerke}
\affiliation{University of California at Santa Barbara, Santa Barbara, CA 93106, USA }
\author{T.~W.~Beck}
\author{J.~Beringer}
\author{A.~M.~Eisner}
\author{C.~A.~Heusch}
\author{W.~S.~Lockman}
\author{T.~Schalk}
\author{R.~E.~Schmitz}
\author{B.~A.~Schumm}
\author{A.~Seiden}
\author{M.~Turri}
\author{W.~Walkowiak}
\author{D.~C.~Williams}
\author{M.~G.~Wilson}
\affiliation{University of California at Santa Cruz, Institute for Particle Physics, Santa Cruz, CA 95064, USA }
\author{J.~Albert}
\author{E.~Chen}
\author{G.~P.~Dubois-Felsmann}
\author{A.~Dvoretskii}
\author{D.~G.~Hitlin}
\author{I.~Narsky}
\author{F.~C.~Porter}
\author{A.~Ryd}
\author{A.~Samuel}
\author{S.~Yang}
\affiliation{California Institute of Technology, Pasadena, CA 91125, USA }
\author{S.~Jayatilleke}
\author{G.~Mancinelli}
\author{B.~T.~Meadows}
\author{M.~D.~Sokoloff}
\affiliation{University of Cincinnati, Cincinnati, OH 45221, USA }
\author{T.~Abe}
\author{T.~Barillari}
\author{F.~Blanc}
\author{P.~Bloom}
\author{S.~Chen}
\author{P.~J.~Clark}
\author{W.~T.~Ford}
\author{U.~Nauenberg}
\author{A.~Olivas}
\author{P.~Rankin}
\author{J.~Roy}
\author{J.~G.~Smith}
\author{W.~C.~van Hoek}
\author{L.~Zhang}
\affiliation{University of Colorado, Boulder, CO 80309, USA }
\author{J.~L.~Harton}
\author{T.~Hu}
\author{A.~Soffer}
\author{W.~H.~Toki}
\author{R.~J.~Wilson}
\author{J.~Zhang}
\affiliation{Colorado State University, Fort Collins, CO 80523, USA }
\author{D.~Altenburg}
\author{T.~Brandt}
\author{J.~Brose}
\author{T.~Colberg}
\author{M.~Dickopp}
\author{R.~S.~Dubitzky}
\author{A.~Hauke}
\author{H.~M.~Lacker}
\author{E.~Maly}
\author{R.~M\"uller-Pfefferkorn}
\author{R.~Nogowski}
\author{S.~Otto}
\author{K.~R.~Schubert}
\author{R.~Schwierz}
\author{B.~Spaan}
\author{L.~Wilden}
\affiliation{Technische Universit\"at Dresden, Institut f\"ur Kern- und Teilchenphysik, D-01062 Dresden, Germany }
\author{D.~Bernard}
\author{G.~R.~Bonneaud}
\author{F.~Brochard}
\author{J.~Cohen-Tanugi}
\author{Ch.~Thiebaux}
\author{G.~Vasileiadis}
\author{M.~Verderi}
\affiliation{Ecole Polytechnique, LLR, F-91128 Palaiseau, France }
\author{A.~Khan}
\author{D.~Lavin}
\author{F.~Muheim}
\author{S.~Playfer}
\author{J.~E.~Swain}
\author{J.~Tinslay}
\affiliation{University of Edinburgh, Edinburgh EH9 3JZ, United Kingdom }
\author{M.~Andreotti}
\author{D.~Bettoni}
\author{C.~Bozzi}
\author{R.~Calabrese}
\author{G.~Cibinetto}
\author{E.~Luppi}
\author{M.~Negrini}
\author{L.~Piemontese}
\author{A.~Sarti}
\affiliation{Universit\`a di Ferrara, Dipartimento di Fisica and INFN, I-44100 Ferrara, Italy  }
\author{E.~Treadwell}
\affiliation{Florida A\&M University, Tallahassee, FL 32307, USA }
\author{F.~Anulli}\altaffiliation{Also with Universit\`a di Perugia, Perugia, Italy }
\author{R.~Baldini-Ferroli}
\author{A.~Calcaterra}
\author{R.~de Sangro}
\author{D.~Falciai}
\author{G.~Finocchiaro}
\author{P.~Patteri}
\author{I.~M.~Peruzzi}\altaffiliation{Also with Universit\`a di Perugia, Perugia, Italy }
\author{M.~Piccolo}
\author{A.~Zallo}
\affiliation{Laboratori Nazionali di Frascati dell'INFN, I-00044 Frascati, Italy }
\author{A.~Buzzo}
\author{R.~Contri}
\author{G.~Crosetti}
\author{M.~Lo Vetere}
\author{M.~Macri}
\author{M.~R.~Monge}
\author{S.~Passaggio}
\author{F.~C.~Pastore}
\author{C.~Patrignani}
\author{E.~Robutti}
\author{A.~Santroni}
\author{S.~Tosi}
\affiliation{Universit\`a di Genova, Dipartimento di Fisica and INFN, I-16146 Genova, Italy }
\author{S.~Bailey}
\author{M.~Morii}
\affiliation{Harvard University, Cambridge, MA 02138, USA }
\author{M.~L.~Aspinwall}
\author{W.~Bhimji}
\author{D.~A.~Bowerman}
\author{P.~D.~Dauncey}
\author{U.~Egede}
\author{I.~Eschrich}
\author{G.~W.~Morton}
\author{J.~A.~Nash}
\author{P.~Sanders}
\author{G.~P.~Taylor}
\affiliation{Imperial College London, London, SW7 2BW, United Kingdom }
\author{G.~J.~Grenier}
\author{S.-J.~Lee}
\author{U.~Mallik}
\affiliation{University of Iowa, Iowa City, IA 52242, USA }
\author{J.~Cochran}
\author{H.~B.~Crawley}
\author{J.~Lamsa}
\author{W.~T.~Meyer}
\author{S.~Prell}
\author{E.~I.~Rosenberg}
\author{J.~Yi}
\affiliation{Iowa State University, Ames, IA 50011-3160, USA }
\author{M.~Davier}
\author{G.~Grosdidier}
\author{A.~H\"ocker}
\author{S.~Laplace}
\author{F.~Le Diberder}
\author{V.~Lepeltier}
\author{A.~M.~Lutz}
\author{T.~C.~Petersen}
\author{S.~Plaszczynski}
\author{M.~H.~Schune}
\author{L.~Tantot}
\author{G.~Wormser}
\affiliation{Laboratoire de l'Acc\'el\'erateur Lin\'eaire, F-91898 Orsay, France }
\author{V.~Brigljevi\'c }
\author{C.~H.~Cheng}
\author{D.~J.~Lange}
\author{D.~M.~Wright}
\affiliation{Lawrence Livermore National Laboratory, Livermore, CA 94550, USA }
\author{A.~J.~Bevan}
\author{J.~P.~Coleman}
\author{J.~R.~Fry}
\author{E.~Gabathuler}
\author{R.~Gamet}
\author{M.~Kay}
\author{R.~J.~Parry}
\author{D.~J.~Payne}
\author{R.~J.~Sloane}
\author{C.~Touramanis}
\affiliation{University of Liverpool, Liverpool L69 3BX, United Kingdom }
\author{J.~J.~Back}
\author{P.~F.~Harrison}
\author{H.~W.~Shorthouse}
\author{P.~Strother}
\author{P.~B.~Vidal}
\affiliation{Queen Mary, University of London, E1 4NS, United Kingdom }
\author{C.~L.~Brown}
\author{G.~Cowan}
\author{R.~L.~Flack}
\author{H.~U.~Flaecher}
\author{S.~George}
\author{M.~G.~Green}
\author{A.~Kurup}
\author{C.~E.~Marker}
\author{T.~R.~McMahon}
\author{S.~Ricciardi}
\author{F.~Salvatore}
\author{G.~Vaitsas}
\author{M.~A.~Winter}
\affiliation{University of London, Royal Holloway and Bedford New College, Egham, Surrey TW20 0EX, United Kingdom }
\author{D.~Brown}
\author{C.~L.~Davis}
\affiliation{University of Louisville, Louisville, KY 40292, USA }
\author{J.~Allison}
\author{R.~J.~Barlow}
\author{A.~C.~Forti}
\author{P.~A.~Hart}
\author{F.~Jackson}
\author{G.~D.~Lafferty}
\author{A.~J.~Lyon}
\author{J.~H.~Weatherall}
\author{J.~C.~Williams}
\affiliation{University of Manchester, Manchester M13 9PL, United Kingdom }
\author{A.~Farbin}
\author{A.~Jawahery}
\author{D.~Kovalskyi}
\author{C.~K.~Lae}
\author{V.~Lillard}
\author{D.~A.~Roberts}
\affiliation{University of Maryland, College Park, MD 20742, USA }
\author{G.~Blaylock}
\author{C.~Dallapiccola}
\author{K.~T.~Flood}
\author{S.~S.~Hertzbach}
\author{R.~Kofler}
\author{V.~B.~Koptchev}
\author{T.~B.~Moore}
\author{S.~Saremi}
\author{H.~Staengle}
\author{S.~Willocq}
\affiliation{University of Massachusetts, Amherst, MA 01003, USA }
\author{R.~Cowan}
\author{G.~Sciolla}
\author{F.~Taylor}
\author{R.~K.~Yamamoto}
\affiliation{Massachusetts Institute of Technology, Laboratory for Nuclear Science, Cambridge, MA 02139, USA }
\author{D.~J.~J.~Mangeol}
\author{M.~Milek}
\author{P.~M.~Patel}
\affiliation{McGill University, Montr\'eal, QC, Canada H3A 2T8 }
\author{A.~Lazzaro}
\author{F.~Palombo}
\affiliation{Universit\`a di Milano, Dipartimento di Fisica and INFN, I-20133 Milano, Italy }
\author{J.~M.~Bauer}
\author{L.~Cremaldi}
\author{V.~Eschenburg}
\author{R.~Godang}
\author{R.~Kroeger}
\author{J.~Reidy}
\author{D.~A.~Sanders}
\author{D.~J.~Summers}
\author{H.~W.~Zhao}
\affiliation{University of Mississippi, University, MS 38677, USA }
\author{C.~Hast}
\author{P.~Taras}
\affiliation{Universit\'e de Montr\'eal, Laboratoire Ren\'e J.~A.~L\'evesque, Montr\'eal, QC, Canada H3C 3J7  }
\author{H.~Nicholson}
\affiliation{Mount Holyoke College, South Hadley, MA 01075, USA }
\author{C.~Cartaro}
\author{N.~Cavallo}\altaffiliation{Also with Universit\`a della Basilicata, Potenza, Italy }
\author{G.~De Nardo}
\author{F.~Fabozzi}\altaffiliation{Also with Universit\`a della Basilicata, Potenza, Italy }
\author{C.~Gatto}
\author{L.~Lista}
\author{P.~Paolucci}
\author{D.~Piccolo}
\author{C.~Sciacca}
\affiliation{Universit\`a di Napoli Federico II, Dipartimento di Scienze Fisiche and INFN, I-80126, Napoli, Italy }
\author{M.~A.~Baak}
\author{G.~Raven}
\affiliation{NIKHEF, National Institute for Nuclear Physics and High Energy Physics, NL-1009 DB Amsterdam, The Netherlands }
\author{J.~M.~LoSecco}
\affiliation{University of Notre Dame, Notre Dame, IN 46556, USA }
\author{T.~A.~Gabriel}
\affiliation{Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA }
\author{B.~Brau}
\author{T.~Pulliam}
\affiliation{Ohio State University, Columbus, OH 43210, USA }
\author{J.~Brau}
\author{R.~Frey}
\author{C.~T.~Potter}
\author{N.~B.~Sinev}
\author{D.~Strom}
\author{E.~Torrence}
\affiliation{University of Oregon, Eugene, OR 97403, USA }
\author{F.~Colecchia}
\author{A.~Dorigo}
\author{F.~Galeazzi}
\author{M.~Margoni}
\author{M.~Morandin}
\author{M.~Posocco}
\author{M.~Rotondo}
\author{F.~Simonetto}
\author{R.~Stroili}
\author{G.~Tiozzo}
\author{C.~Voci}
\affiliation{Universit\`a di Padova, Dipartimento di Fisica and INFN, I-35131 Padova, Italy }
\author{M.~Benayoun}
\author{H.~Briand}
\author{J.~Chauveau}
\author{P.~David}
\author{Ch.~de la Vaissi\`ere}
\author{L.~Del Buono}
\author{O.~Hamon}
\author{M.~J.~J.~John}
\author{Ph.~Leruste}
\author{J.~Ocariz}
\author{M.~Pivk}
\author{L.~Roos}
\author{J.~Stark}
\author{S.~T'Jampens}
\affiliation{Universit\'es Paris VI et VII, Lab de Physique Nucl\'eaire H.~E., F-75252 Paris, France }
\author{P.~F.~Manfredi}
\author{V.~Re}
\affiliation{Universit\`a di Pavia, Dipartimento di Elettronica and INFN, I-27100 Pavia, Italy }
\author{L.~Gladney}
\author{Q.~H.~Guo}
\author{J.~Panetta}
\affiliation{University of Pennsylvania, Philadelphia, PA 19104, USA }
\author{C.~Angelini}
\author{G.~Batignani}
\author{S.~Bettarini}
\author{M.~Bondioli}
\author{F.~Bucci}
\author{G.~Calderini}
\author{M.~Carpinelli}
\author{F.~Forti}
\author{M.~A.~Giorgi}
\author{A.~Lusiani}
\author{G.~Marchiori}
\author{F.~Martinez-Vidal}\altaffiliation{Also with IFIC, Instituto de F\'{\i}sica Corpuscular, CSIC-Universidad de Valencia, Valencia, Spain}
\author{M.~Morganti}
\author{N.~Neri}
\author{E.~Paoloni}
\author{M.~Rama}
\author{G.~Rizzo}
\author{F.~Sandrelli}
\author{J.~Walsh}
\affiliation{Universit\`a di Pisa, Dipartimento di Fisica, Scuola Normale Superiore and INFN, I-56127 Pisa, Italy }
\author{M.~Haire}
\author{D.~Judd}
\author{K.~Paick}
\author{D.~E.~Wagoner}
\affiliation{Prairie View A\&M University, Prairie View, TX 77446, USA }
\author{N.~Danielson}
\author{P.~Elmer}
\author{C.~Lu}
\author{V.~Miftakov}
\author{J.~Olsen}
\author{A.~J.~S.~Smith}
\author{E.~W.~Varnes}
\affiliation{Princeton University, Princeton, NJ 08544, USA }
\author{F.~Bellini}
\affiliation{Universit\`a di Roma La Sapienza, Dipartimento di Fisica and INFN, I-00185 Roma, Italy }
\author{G.~Cavoto}
\affiliation{Princeton University, Princeton, NJ 08544, USA }
\affiliation{Universit\`a di Roma La Sapienza, Dipartimento di Fisica and INFN, I-00185 Roma, Italy }
\author{R.~Faccini}
\affiliation{University of California at San Diego, La Jolla, CA 92093, USA }
\affiliation{Universit\`a di Roma La Sapienza, Dipartimento di Fisica and INFN, I-00185 Roma, Italy }
\author{F.~Ferrarotto}
\author{F.~Ferroni}
\author{M.~Gaspero}
\author{M.~A.~Mazzoni}
\author{S.~Morganti}
\author{M.~Pierini}
\author{G.~Piredda}
\author{F.~Safai Tehrani}
\author{C.~Voena}
\affiliation{Universit\`a di Roma La Sapienza, Dipartimento di Fisica and INFN, I-00185 Roma, Italy }
\author{S.~Christ}
\author{G.~Wagner}
\author{R.~Waldi}
\affiliation{Universit\"at Rostock, D-18051 Rostock, Germany }
\author{T.~Adye}
\author{N.~De Groot}
\author{B.~Franek}
\author{N.~I.~Geddes}
\author{G.~P.~Gopal}
\author{E.~O.~Olaiya}
\author{S.~M.~Xella}
\affiliation{Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, United Kingdom }
\author{R.~Aleksan}
\author{S.~Emery}
\author{A.~Gaidot}
\author{S.~F.~Ganzhur}
\author{P.-F.~Giraud}
\author{G.~Hamel de Monchenault}
\author{W.~Kozanecki}
\author{M.~Langer}
\author{G.~W.~London}
\author{B.~Mayer}
\author{G.~Schott}
\author{G.~Vasseur}
\author{Ch.~Yeche}
\author{M.~Zito}
\affiliation{DSM/Dapnia, CEA/Saclay, F-91191 Gif-sur-Yvette, France }
\author{M.~V.~Purohit}
\author{A.~W.~Weidemann}
\author{F.~X.~Yumiceva}
\affiliation{University of South Carolina, Columbia, SC 29208, USA }
\author{D.~Aston}
\author{R.~Bartoldus}
\author{N.~Berger}
\author{A.~M.~Boyarski}
\author{O.~L.~Buchmueller}
\author{M.~R.~Convery}
\author{D.~P.~Coupal}
\author{D.~Dong}
\author{J.~Dorfan}
\author{D.~Dujmic}
\author{W.~Dunwoodie}
\author{R.~C.~Field}
\author{T.~Glanzman}
\author{S.~J.~Gowdy}
\author{E.~Grauges-Pous}
\author{T.~Hadig}
\author{V.~Halyo}
\author{T.~Hryn'ova}
\author{W.~R.~Innes}
\author{C.~P.~Jessop}
\author{M.~H.~Kelsey}
\author{P.~Kim}
\author{M.~L.~Kocian}
\author{U.~Langenegger}
\author{D.~W.~G.~S.~Leith}
\author{S.~Luitz}
\author{V.~Luth}
\author{H.~L.~Lynch}
\author{H.~Marsiske}
\author{S.~Menke}
\author{R.~Messner}
\author{D.~R.~Muller}
\author{C.~P.~O'Grady}
\author{V.~E.~Ozcan}
\author{A.~Perazzo}
\author{M.~Perl}
\author{S.~Petrak}
\author{B.~N.~Ratcliff}
\author{S.~H.~Robertson}
\author{A.~Roodman}
\author{A.~A.~Salnikov}
\author{R.~H.~Schindler}
\author{J.~Schwiening}
\author{G.~Simi}
\author{A.~Snyder}
\author{A.~Soha}
\author{J.~Stelzer}
\author{D.~Su}
\author{M.~K.~Sullivan}
\author{H.~A.~Tanaka}
\author{J.~Va'vra}
\author{S.~R.~Wagner}
\author{M.~Weaver}
\author{A.~J.~R.~Weinstein}
\author{W.~J.~Wisniewski}
\author{D.~H.~Wright}
\author{C.~C.~Young}
\affiliation{Stanford Linear Accelerator Center, Stanford, CA 94309, USA }
\author{P.~R.~Burchat}
\author{A.~J.~Edwards}
\author{T.~I.~Meyer}
\author{C.~Roat}
\affiliation{Stanford University, Stanford, CA 94305-4060, USA }
\author{S.~Ahmed}
\author{M.~S.~Alam}
\author{J.~A.~Ernst}
\author{M.~Saleem}
\author{F.~R.~Wappler}
\affiliation{State Univ.\ of New York, Albany, NY 12222, USA }
\author{W.~Bugg}
\author{M.~Krishnamurthy}
\author{S.~M.~Spanier}
\affiliation{University of Tennessee, Knoxville, TN 37996, USA }
\author{R.~Eckmann}
\author{H.~Kim}
\author{J.~L.~Ritchie}
\author{R.~F.~Schwitters}
\affiliation{University of Texas at Austin, Austin, TX 78712, USA }
\author{J.~M.~Izen}
\author{I.~Kitayama}
\author{X.~C.~Lou}
\author{S.~Ye}
\affiliation{University of Texas at Dallas, Richardson, TX 75083, USA }
\author{F.~Bianchi}
\author{M.~Bona}
\author{F.~Gallo}
\author{D.~Gamba}
\affiliation{Universit\`a di Torino, Dipartimento di Fisica Sperimentale and INFN, I-10125 Torino, Italy }
\author{C.~Borean}
\author{L.~Bosisio}
\author{G.~Della Ricca}
\author{S.~Dittongo}
\author{S.~Grancagnolo}
\author{L.~Lanceri}
\author{P.~Poropat}\thanks{Deceased}
\author{L.~Vitale}
\author{G.~Vuagnin}
\affiliation{Universit\`a di Trieste, Dipartimento di Fisica and INFN, I-34127 Trieste, Italy }
\author{R.~S.~Panvini}
\affiliation{Vanderbilt University, Nashville, TN 37235, USA }
\author{Sw.~Banerjee}
\author{C.~M.~Brown}
\author{D.~Fortin}
\author{P.~D.~Jackson}
\author{R.~Kowalewski}
\author{J.~M.~Roney}
\affiliation{University of Victoria, Victoria, BC, Canada V8W 3P6 }
\author{H.~R.~Band}
\author{S.~Dasu}
\author{M.~Datta}
\author{A.~M.~Eichenbaum}
\author{H.~Hu}
\author{J.~R.~Johnson}
\author{P.~E.~Kutter}
\author{H.~Li}
\author{R.~Liu}
\author{F.~Di~Lodovico}
\author{A.~Mihalyi}
\author{A.~K.~Mohapatra}
\author{Y.~Pan}
\author{R.~Prepost}
\author{S.~J.~Sekula}
\author{J.~H.~von Wimmersperg-Toeller}
\author{J.~Wu}
\author{S.~L.~Wu}
\author{Z.~Yu}
\affiliation{University of Wisconsin, Madison, WI 53706, USA }
\author{H.~Neal}
\affiliation{Yale University, New Haven, CT 06511, USA }
\collaboration{The \babar\ Collaboration}
\noaffiliation

\begin{abstract}
We  report  a measurement  of  the  inclusive charmless  semileptonic
branching fraction of $B$ mesons in a sample of 89 million \BB\ events
recorded with  the \babar\ detector at the  \FourS\ resonance.  Events
are selected  by fully reconstructing the  decay of one  $B$ meson and
identifying  a charged  lepton from  the  decay of  the other  $B$
meson. The number of signal events is extracted from the hadronic mass
distribution and is used to determine the ratio of branching fractions
${\BR(\Bxulnu)/\BR(\Bxlnu)}  =  
(2.06 \pm 0.25(stat) \pm 0.23(syst) \pm 0.36(theo))\times 10^{-2}$.
%, where the $(\lbar, \lone)$ error reflects the uncertainty in
%these HQET parameters
  Using the measured branching fraction for
inclusive semileptonic $B$ decays, we find $\BR(\Bxulnu) = (2.24 \pm
0.27(stat) \pm 0.26(syst) \pm 0.39(theo))\times 10^{-3}$
 and derive the CKM
%quark mixing 
matrix element $\Vub =
(4.62 \pm 0.28(stat) \pm 0.27(syst)
%{\,\,}^{+\allvubEthHi}_{-\allvubEthLo}{}(theo)
%\pm\allvubEthHi(theo) 
%\pm\allvubEtheo(V_{ub}theo)
%\pm\allvubEpert(pert)
%\pm\allvubEhomb(1/m^3_b)
\pm 0.48 (theo)
)\times 10^{-3} $.
%where the last error is the theoretical uncertainty
%in the extraction of \Vub\ from the total decay rate.
\end{abstract}



\pacs{12.15.Hh, 11.30.Er, 13.25.Hw}% PACS, the Physics and Astronomy Classification Scheme.

\date{\today}%

\maketitle

% The body of the paper starts here

%%\input paper2.tex

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ifnum\isprl<1
\section{Introduction}
\label{sec:introduction}
\fi
The element  \Vub of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix~\cite{ckm}
  plays a critical role in testing the consistency of the Standard Model description of \CP\ violation.  In this paper, we present 
a determination of \Vub\ from a measurement of inclusive charmless 
semileptonic decays 
\Bxulnu~\cite{cc}. The analysis uses \FourS\to\BB\ events in which one of the \B\ meson decays hadronically and is fully reconstructed ($B_{reco}$) 
%the novel method of fully reconstructing  in hadronic final states one of the \B\ mesons ($B_{reco}$) from the decay \FourS\to\B\Bb\ events, while 
and the semileptonic 
decay of the recoiling \Bb\ meson is identified by the presence of an electron or muon. While this approach 
results in a low overall event selection efficiency, it allows for the determination of the momentum, charge,
 and flavor of the \B\ mesons. 
%Since the total \Bxulnu\ decay rate is about 2\% of that for \Bxclnu, 
We use the invariant mass \mX\ of the hadronic system to separate \Bxulnu\ decays from the dominant \Bxclnu\ background, which clusters above the 
\D\ meson mass~\cite{Barger:tz}. 
By ensuring a higher signal purity and  acceptance  than  previously  achieved~\cite{Barate:1998vv}, and 
by measuring   the   fraction    of   charmless    semileptonic   decays
$\rusl={\BR(\Bxulnu)/\BR(\Bxlnu)}$, this analysis leads to  
%a substantial reduction of the  
substantially smaller systematic uncertainties~\cite{duality}.

%The    element   \Vub    of   the    Cabibbo-Kobayashi-Maskawa quark-mixing
%matrix~\cite{ckm} plays a critical  role in testing the consistency of the Standard Model
%description of CP violation.  We present a determination of
%\Vub\ from a measurement of the inclusive charmless semileptonic branching
%fraction $\BR(\Bxulnu)$.
%%
%Since the total \Bxulnu\ decay rate is about 2\% of  that of \Bxclnu,
%we restrict to regions of the phase space where  \Bxulnu\ decays are favored.
% The extrapolation of the measured rate 
%to the full phase space introduces theoretical uncertainties~\cite{duality}.
%%This  measurement  represents  a  challenge  as  the  background  from
%%\Bxclnu\  decays has  to be  reduced with  a stringent  selection. The
%%resulting phase space reduction for \Bxulnu\ decays usually requires a
%%large extrapolation that leads to theoretical uncertainties~\cite{duality}.
%%
%%%The necessary  efficiency corrections require a detailed  model of the
%%%decay beyond the parton level, including hadronization~\cite{duality}.
%In  this Letter,  we present  a novel  analysis method  based  on \FourS\to\BB\
%events in which one of the $B$ mesons decays hadronically and is fully
%reconstructed ($B_{reco}$) and the semileptonic decay of the recoiling
%$B$ meson  is identified  by the  presence of an  electron or  a muon.
%While this approach results in a low overall efficiency, it allows for
%the  determination of  the momentum,  charge,  and flavor  of the  $B$
%mesons.  The invariant mass
%\mX\ of the hadronic system is used to separate charmless decays from
%the dominant background, which  clusters primarily above the $D$ meson
%mass~\cite{Barger:tz}.  
%By ensuring a higher signal purity
%and  acceptance  than  previously  achieved~\cite{Barate:1998vv}, and 
%by measuring   the   fraction    of   charmless    semileptonic   decays
%$\rusl={\BR(\Bxulnu)/\BR(\Bxlnu)}$, the technique adopted in this Letter
%leads to  a substantial reduction of the  systematic and theoretical
%uncertainties.

%This selection results in higher signal purity
%and  acceptance  than  previously  achieved~\cite{Barate:1998vv}.   By
%measuring    the   fraction    of   charmless    semileptonic   decays
%$\rusl={\BR(\Bxulnu)/\BR(\Bxlnu)}$,  we  minimize  the impact  of  the
%uncertainties  in the overall  detection efficiencies.   This approach
%results in  a substantial reduction of the  systematic and theoretical
%uncertainties.
% To separate the
%signal from the background of \Bxclnu\ decays, we use the mass
%$\mX$ of the hadronic system produced in the semileptonic
%decay~\cite{Barger:tz}.  This method has the largest acceptance of all methods 
%currently proposed for studying  \Bxulnu\ decays.

% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
\ifnum\isprl<1
\section{The \babar\ Dataset and Monte Carlo Simulation}
\label{sec:data}
\fi
% ----------------------------------------------------------------------
\ifnum\isprl<1
\subsection{Data}
\fi

%The measurement presented here is based on data recorded by the \babar\
%detector~\cite{babarnim} at the \pep2\ asymmetric-energy \epem storage
%ring at SLAC. The data sample of about 89 million \BB\ pairs
%corresponds to an integrated luminosity of 82\invfb collected at the
%\FourS\ resonance. 
 
The measurement presented here is based on a sample of about 89 million \BB\ pairs
collected  near the \FourS\ resonance by the \babar\ detector~\cite{babarnim} at the
PEP-II  asymmetric-energy  $e^+e^-$ storage ring operating at SLAC.

%The \babar\ detector consists of a five-layer
%silicon vertex tracker, a 40-layer drift chamber, a
%detector of internally reflected Cherenkov light, an
%electromagnetic calorimeter, assembled from 6580 CsI(Tl)
%crystals, all embedded in a solenoidal magnetic field of $1.5\,{\rm T}$ and
%surrounded by an instrumented flux return.

  

% ----------------------------------------------------------------------
\ifnum\isprl<1
\subsection{Monte Carlo Simulation}
\label{subsec:montecarlo}
\fi

We use Monte Carlo (MC) simulations of the \babar\ detector based on
\geant~\cite{geant} to optimize selection criteria and to
determine signal efficiencies and background distributions.  
%%%
%In the simulation of \Bxulnu\  decays, the hadronic final state $X$ is
%either  a resonant single meson  or a  combination of  non-resonant multi-meson
%states.
Charmless semileptonic \Bxulnu\ decays  are simulated as a combination
(see Fig.~\ref{fig:mxeff}a)  of resonant  three-body decays  ($X_u =
\pi,  \eta,  \rho,  \omega,   \ldots$)~\cite{ref:isgwtwo}   and  decays   to
nonresonant          hadronic       final       states
$X_u$~\cite{ref:fazioneubert}, for which the hadronization is performed by
\jetset~\cite{ref:jetset}. The motion of the $b$ quark inside the $B$
meson   is  implemented  with   the  shape   function  
parametrization given in Ref.~\cite{ref:fazioneubert}.
%%%
%%Charmless semileptonic $B$ decays are simulated as a mixture
%%(Figure~\ref{fig:mxeff}a) of decays to a single hadron or resonance and
%%decays to non-resonant multi-hadrons.
% The two components  are combined  so that
%the total charmless semileptonic branching fraction is compatible with
%this measurement and also so that the cumulative distribution function
%is          consistent          with          the          theoretical
%calculation~\cite{ref:fazioneubert}.   
%%Decays to single hadrons are simulated according to the ISGW2
%%model~\cite{ref:isgwtwo}.  The simulation of the decays with
%%multi-hadrons relies on a shape function
%%parameterization~\cite{ref:fazioneubert} for the Fermi motion of the
%%$b$ quark inside the $B$ meson.  
%%The fragmentation is handled by \jetset~\cite{ref:jetset}.  
%
The simulation of the $\Bxclnu$ background uses an HQET parametrization of form factors for $\Bb\to
D^{*}\ell\nub$~\cite{ref:duboscq}, and models  for $\Bb\to
D \pi \ell\nub, D^* \pi \ell\nub$~\cite{ref:goityroberts}, and  $\Bb\to D
%~\cite{parent}
\ell\nub,D^{**}\ell\nub $~\cite{ref:isgwtwo}.


% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% 
\ifnum\isprl<1
\section{Data Analysis}
\label{sec:analysis}
\fi

% ----------------------------------------------------------------------
\ifnum\isprl<1
\subsection{Selection of Hadronic $B$ Decays, $B \ra \Db Y$}
\fi

To reconstruct a large sample of $B$ mesons, hadronic decays $B_{reco}
\rightarrow  \Db Y^{\pm}, \Db^* Y^{\pm}$  are  selected.  Here, the  system
$Y^{\pm}$ consists of hadrons with a total charge of $\pm 1$, composed
of $n_1\pi^{\pm}\, n_2K^{\pm}\, n_3\KS\,  n_4\piz$, where $n_1 + n_2 \leq
5$,  $n_3  \leq  2$,  and  $n_4  \leq  2$.   We  reconstruct  $D^{*-}\ra
\Dzb\pi^-$; $\Dstarzb \ra
\Dzb\piz, \Dzb\gamma$; $D^-\ra K^+\pi^-\pi^-$, $K^+\pi^-\pi^-\piz$, $\KS\pi^-$,
$\KS\pi^-\piz$, $\KS\pi^-\pi^-\pi^+$; and $\Dzb\ra K^+\pi^-$,
$K^+\pi^-\piz$, $K^+\pi^-\pi^-\pi^+$,  $\KS\pi^+\pi^-$. 
The kinematic consistency of $B_{reco}$ candidates 
%for the $B_{reco}$ sample are identified 
is checked with two variables,
the beam energy-substituted mass $\mes = \sqrt{s/4 -
\vec{p}^{\,2}_B}$ and the energy difference 
$\Delta E = E_B - \sqrt{s}/2$. Here $\sqrt{s}$ is the total
energy in the \FourS center of mass frame, and $\vec{p}_B$ and $E_B$
denote the momentum and energy of the $B_{reco}$ candidate in the same
frame.  We require $\Delta E = 0$ within three standard
deviations as measured for each mode.

For each of the 1097 reconstructed $B$ decay modes, the purity
${\cal P}$ is estimated as the fraction of signal events with \mes$>
5.27$\gevcc.  We  only use events for which $\cal P$ exceeds a
decay mode dependent threshold in the range of 9\% to 24\%. 
 In events with more than one
reconstructed $B$ decay, we select the decay mode with the highest purity.  
On average, we reconstruct one $B$ candidate in 0.3\%  (0.5\%) of the 
\BzBzb\ (\BpBm) events. The purity for events
with  a high-momentum lepton is 67\% (see Fig.~\ref{fig:msl}a).
 %(66.5\pm0.4)\%

% ----------------------------------------------------------------------
\ifnum\isprl<1
\subsection{Selection of Semileptonic Decays, $\Bxlnu$}
\fi

Semileptonic  decays $\Bxlnu$ of the \Bb\ recoiling against the \breco\
candidate are identified by an electron or muon with a
minimum momentum of $p^* > 1 \gevc$ in the \Bb rest frame.  For
charged \breco\ candidates, we require the charge of the lepton to be
consistent with a prompt semileptonic \Bb\ decay. For
neutral \breco\ candidates, both charge-flavor
combinations are retained and the known average $\Bz$-$\Bzb$ mixing rate is used to extract the prompt lepton yield.
%the average $\Bz$-$\Bzb$ mixing rate is used to extract the prompt lepton yield.
%
%For $B^-$ candidates the correlation  between the charge of the prompt
%lepton and the $B_{reco}$ decay is imposed.
%
%For  neutral  $B$   candidates  both  charge-flavor  correlations  are
%retained  and   the  prompt  lepton  yield  is   extracted  using  the
%$\Bz$-$\Bzb$ mixing rate.
Electrons are identified~\cite{Aubert:2002uf} with 92\% average efficiency and a
hadron misidentification rate ranging between 0.05\% and 0.1\%.
Muons are identified~\cite{babarnim} with an
efficiency ranging between 60\% ($p^*>1\gevc$) and 75\% ($p^*>2\gevc$)
and hadron misidentification rate between 1\% and 3\%.
Efficiencies and misidentification rates are estimated from
data control  samples.
%  The electron
%identification  efficiency  ($\varepsilon_{e}\simeq92\%$) is  measured
%using radiative  Bhabha events.  Muons  are identified by  a cut-based
%selection~\cite{babarnim}.    The   muon   identification   efficiency
%($\varepsilon_{\mu}\simeq70\%$ for $p^* > 1.5\gevc$) is measured using
%$e^+e^-\to\mu^+\mu^-  (\gamma)$ events  and  two-photon production  of
%$\mu^+\mu^-$  pairs.  The  misidentification  probabilities of  pions,
%kaons, and protons have been extracted from data control samples. They
%vary between  0.05\% and 0.1\% (1\%  and 3\%) for  the electron (muon)
%selection.

The hadronic system $X$ in the decay \Bxlnu\ is reconstructed from charged
tracks  and energy depositions
in the calorimeter that are not associated with
the \breco\ candidate or the identified lepton.  Care is taken to eliminate 
%duplicate, curling, and 
fake charged tracks, as well as low-energy beam-generated photons and energy depositions in the calorimeter from charged and
neutral hadrons.  The
neutrino four-momentum $p_{\nu}$ is estimated from the
missing momentum four-vector $p_{miss} = p_{Y(4S)}-p_{\breco} -p_X-p_\ell$, 
where all momenta are measured in the laboratory frame and
$p_{Y(4S)}$ refers to the  \FourS\ meson. 
The mass of the hadronic system is determined by a
kinematic fit that imposes four-momentum conservation, the equality of
the masses of the two $B$ mesons, and forces $p_{\nu}^2 = 0$.  The resulting $\mX$ resolution is 350
\mevcc on average.

To select \Bxulnu\ candidates we require exactly one
charged lepton with $p^* > 1 \gevc$, charge conservation ($Q_{X} +
Q_\ell + Q_{\breco} = 0$), and a missing mass consistent with zero
($\mmiss < 0.5 \gev^2/c^4$).  These criteria suppress the dominant
\Bxclnu\ decays, many of which contain additional neutrinos or
an undetected $\KL$ meson.  We suppress
%about  68\%   of   
the $\Bzb\to\Dstarp\ell^-\overline{\nu}$ background by reconstructing
the $\pi^+_s$ from the $\Dstarp\to \Dz\pi_s^+$ decay and the
lepton: since the momentum of the $\pi^+_s$ is almost collinear with the
\Dstarp\ momentum in the laboratory frame, we can approximate the
energy of the \Dstarp\ as $E_{\Dstarp}
\simeq m_{\Dstarp} \cdot E_{\pi_s} /145 \mevcc$ and require for the
neutrino  $  m_{\nu}^2  =  (p_B   -  p_{\Dstarp}  -  p_{\ell})^2  <  -
3\gev^2/c^4$.  We  veto events  with charged or  neutral kaons  in the
recoil  \Bb\ to reduce  the background  from \Bxclnu\  decays.  Charged
kaons are identified \cite{babarnim}
%by a likelihood algorithm~
with an efficiency varying between 60\% at the highest and almost 100\% at the
lowest  momenta.  The  pion   misidentification rate is  about  2\%.   The
$\KS\to\pi^+\pi^-$  decays  are reconstructed  with  an efficiency  of
$80\%$ from pairs of oppositely  charged tracks with an invariant mass
between 486  and   510  \mevcc.  The  impact  of  the  event
selection    on   the   $\mX$    distribution   is    illustrated   in
Fig.~\ref{fig:mxeff}b.

\ifnum\isprl<1
   \begin{figure}
    \begin{centering} 
     %%% \epsfig{file=mxhadgenDistribution.eps,height=8.cm} \epsfig{file=mxhadgenEfficiency.eps,height=8.cm}
    \hbox{\hskip-1.1cm\epsfig{file=plot0.eps,height=6.cm}
    \epsfig{file=plot3.eps,height=6.cm}
    \epsfig{file=plot5.eps,height=6.cm}}

    \caption{Signal MC $\mX$ distributions: a) generated \mX\
    distributions for the resonant and the nonresonant components of
    the signal model after requiring the
    presence of a lepton with $p^* > 1\gevc$ and  b) measured \mX\ distribution 
after the $p^*$ cut  and
    after all cuts.  \label{fig:mxeff}}

   \end{centering}
   \end{figure} 
\else
   \begin{figure}[t]
    \begin{centering} 
     %%% \epsfig{file=mxhadgenDistribution.eps,height=8.cm} \epsfig{file=mxhadgenEfficiency.eps,height=8.cm}
    \hbox{\hskip-0.cm \epsfig{file=prlPlotsPlot-1a.eps,height=4.6cm} \hskip-0.3cm \epsfig{file=prlPlotsPlot-1b.eps,height=4.6cm}}
    \caption{Signal MC $\mX$ distributions with the  requirement of a
    lepton with $p^* > 1\gevc$:  a) generated \mX\ distributions
    for the two components of the signal
    model, and b) measured \mX\ distribution before and after all other requirements.
    \label{fig:mxeff}}
   \end{centering}
   \end{figure} 
\fi


% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ifnum\isprl<1
\section{Extraction of Branching Ratios}
\label{sec:fitconcepts}
\fi

We determine \rusl\ from $N_u$, the observed number of $\Bxulnu$ candidates with $\mX<1.55$\gevcc,
 and $N_{sl}$, the number of events with at least one charged lepton: 
\begin{equation*}
\rusl=
\frac{\BR(\Bxulnu)}{\BR(\Bxlnu)}=
%\frac{N_{u}^{true}}{N_{sl}^{true}} = 
\frac{N_u/(\varepsilon_{sel}^u \varepsilon_{\mX}^u)}{N_{sl}} 
\times \frac{\varepsilon_l^{sl} \varepsilon_{reco}^{sl} } {\varepsilon_l^u \varepsilon_{reco}^u }.
\label{eq:vubExtr}
\end{equation*}
Here  $\varepsilon^u_{sel} = (\allepsu\pm0.6)\%$ is the
efficiency for selecting \Bxulnu\ decays once a \Bxlnu\ candidate has been identified, 
 $\varepsilon^u_{\mX} = (\allepsmx\pm0.9)\%$ is the
fraction of signal events with $m_X < 1.55\gevcc$, 
$\varepsilon_l^{sl}/\varepsilon_l^u = 0.887\pm0.008$ corrects for the
difference in the efficiency of the lepton momentum cut for
\Bxlnu\ and
\Bxulnu\ decays, and  $\varepsilon_{reco}^{sl}/\varepsilon_{reco}^u = 1.00 \pm 0.03$
accounts for a possible efficiency difference in the $B_{reco}$
reconstruction in events with \Bxlnu\ and \Bxulnu\ decays.

 We derive $N_{sl}$  from a fit to the \mes 
distribution shown in Fig.~\ref{fig:msl}a.
The fit uses an empirical description~\cite{argusf} of the combinatorial 
background from continuum and \BB\ events, together with a narrow
 signal~\cite{cry} peaked at the $B$ meson mass. The small tail accounts
for energy losses in the reconstruction of \piz\ mesons. 
%The first row in Table~\ref{breakdown} shows the result we find.
   The  residual  background  in  $N_{sl}$  from  misidentified
leptons and semileptonic charm decays amounts to $6.8\%$ and
is subtracted.


\ifnum\isprl<1
   \begin{figure} \begin{centering}
    \epsfig{file=mes-nsl.eps,height=8.cm}
    \epsfig{file=mes-ball-lomx.eps,height=8.cm}

    \caption{a)  Fit to  the  $\mes$ distributions  for the  inclusive
    lepton  sample with  $p^* >  1\gevc$ in  the recoil  of  a \breco\
    candidate, and  b) for selected  events with $\mX <  1.55 \gevcc$.
    The  arrow  indicates the  cut  on  \mes\  for signal  candidates.
    \label{fig:msl}} \end{centering} \end{figure}
\else
   \begin{figure}[t]
    \begin{centering}
    \hbox{\hskip-0.cm \epsfig{file=prlPlotsPlot-2a.eps,height=4.6cm} \hskip-0.4cm \epsfig{file=prlPlotsPlot-2b.eps,height=4.6cm}}

    \caption{Fit to the $\mes$ distributions for a) the sample with a $p^*>1\gevc$ lepton 
%    with in the recoil against a \breco\ candidate,
 and b) the sample after all requirements and  with $\mX < 1.55 \gevcc$. 
 The arrow    indicates the lower limit of the signal region.
    \label{fig:msl}}

   \end{centering}
   \end{figure}
\fi
We extract $N_u$ from   the $\mX$ distribution by a minimum $\chi^2$
fit to the sum of three contributions: the signal, the background
$N_{c}$ from
\Bxclnu, and a background of $<1\%$ from other sources (misidentified
leptons, secondary $\tau$ and charm decays). 
%The signal yield $N_u$
%(Figure~\ref{fig:msl}b) is
%determined from events with \mX\ smaller than a threshold which 
%is set to $1.55\gevcc$ to minimize the total statistical plus systematic error.
 In each bin of the
\mX\ distribution, the combinatorial $B_{reco}$ background for $\mes>5.27$ is
subtracted on the basis of a fit to the $\mes$ distribution (Fig.~\ref{fig:msl}b). 
Fig.~\ref{fig:fitdata}a shows the fitted $\mX$ distribution.
To minimize the model dependence,
the first bin is extended to $\mX < 1.55\gevcc$.
 The fit reproduces the data well with $\chi^2/dof=7.6/6$.
%while the other bins are chosen  to separate
%the contribution from  each resonant $\Bxclnu$mode.
Fig.~\ref{fig:fitdata}b shows the $\mX$ distribution
after background subtraction
%compared with the signal distribution, 
with finer binning.
 Table~\ref{breakdown} summarizes the results of fits with different requirements on \mX,
 for electrons and muons, for neutral and charged \breco\ candidates, 
and 
%for three mutually exclusive samples 
for different ranges of the $B_{reco}$ purity $\cal P$.
The results are all consistent within the uncorrelated statistical errors.

% -- fit result data
\ifnum\isprl<1
   \begin{figure}
    \begin{centering}
   %%    \epsfig{file=theFit.eps,height=7.0cm} 
     \hbox{\hskip-1cm\epsfig{file=fitresult1.eps,height=6.0cm} \epsfig{file=fitresult0.eps,height=6.0cm} \epsfig{file=fitresult2.eps,height=6.0cm}}

     \caption{The $\mX$ distribution in \Bxlnu\ decays. a) Selected
     data (points) with a $\chi^2$ fit. b) Background subtracted
     data and signal MC.  \label{fig:fitdata}}

   \end{centering}
   \end{figure} 
\else
\begin{figure}[t]
    \begin{centering}
     \hbox{\hskip -0.cm \epsfig{file=prlPlotsPlot-3a.eps,height=4.6cm} \hskip-0.3cm \epsfig{file=prlPlotsPlot-3b.eps,height=4.6cm} }
     %     \epsfig{file=fitresult2.eps,height=6.0cm}

     \caption{The $\mX$ distribution for \Bxlnu\ candidates: a)
     data (points) and fit components, and b) 
     data and signal MC after subtraction of the $b\to c\ell\nu$ and the ``other'' backgrounds.  \label{fig:fitdata}}

   \end{centering}
   \end{figure} 
\fi




% ----------------------------------------------------------------------
\begin{table}
\begin{center}
\caption{Fit results for data subsamples.}
\scriptsize
\vspace{0.03in}
\begin{tabular}{|lcccc|} \hline 
Sample  &$N_{sl}$&$N_u$& $N_{c}$ &$\rusl (\%)$\\ 
\hline
$\mX<1.55\gevcc$     &$\allslsub$      &$\allnu$     &$\allbgc$     &$\allbrbr $\\
$\mX<1.40\gevcc$     &$\lomxslsub$     &$\lomxnu$    &$\lomxbgc$    &$\lomxbrbr $\\
$\mX<1.70\gevcc$     &$\himxslsub$     &$\himxnu$    &$\himxbgc$    &$\himxbrbr $\\
\hline                                                              
neutral $B_{reco}$             &$\bneslsub$      &$\bnenu$     &$\bnebgc$     &$\bnebrbr $\\
charged $B_{reco}$         &$\bchslsub$      &$\bchnu$     &$\bchbgc$     &$\bchbrbr$\\
\hline                                                              
Electrons            &$\eleslsub$      &$\elenu$     &$\elebgc$     &$\elebrbr$\\
Muons                &$\muslsub$       &$\munu$      &$\mubgc$      &$\mubrbr$\\
\hline                                                              
${\cal P}>80\%$      &$\sboneslsub$    &$\sbonenu$   &$\sbonebgc$   &$\sbonebrbr$  \\
$50\%<{\cal P}<80\%$ &$\sbtwoslsub$    &$\sbtwonu$   &$\sbtwobgc$   &$\sbtwobrbr$  \\
${\cal P}<50\%$      &$\sbthreeslsub$  &$\sbthreenu$ &$\sbthreebgc$ &$\sbthreebrbr$\\
\hline
\end{tabular}
\label{breakdown}
\end{center}
\end{table}


% ----------------------------------------------------------------------
%\begin{table}[h]
%%\caption{Systematic uncertainties in the measurement of $\rusl$ in \%. }
%\caption{Summary of systematic uncertainties. }
%\bigskip
%\begin{minipage}{\linewidth}
%\begin{center}
%\small
%\renewcommand{\thefootnote}{\thempfootnote}
%\begin{tabular}{|l|l|}  \hline 
%Source                                            &$\Delta\rusl/\rusl\,(\%)$  \\
%\hline
%%%% cout << sqrt(4.5*4.5 + 1.*1. + 4.7*4.7 + 1.*1. + 1.*1. + 1.0*1.0 + 2.3*2.3 + 3.8*3.8 + 1.2*1.2 + 3.0*3.0) << endl; 
%MC statistics                                      &\phantom{1}4.5   \\
%Photon resolution                                  &\phantom{1}4.7   \\
%Tracking efficiency                                &\phantom{1}1.0   \\
%$K^{\pm}$ identification                           &\phantom{1}2.3   \\
%Lepton identification                              &\phantom{1}1.4   \\
%$\KL$ interactions                                 &\phantom{1}1.0   \\
%$B_{reco}$ composition, \mes fits                  &\phantom{1}3.8   \\
%$\varepsilon_{reco}^{sl} /\varepsilon_{reco}^u $             &\phantom{1}3.0   \\
%Binning effects                                    &\phantom{1}1.2   \\
%&\\*[-.4cm]
%%%\hline\\*[-.4cm]
%$\sum$ (Experimental systematic error)             &\quad\quad\phantom{1}8.7   \\*[.1cm]
%\hline
%$b\to cl\bar{\nu} X$ branching fractions &\phantom{1}4.0   \\
%$D$ branching fractions                            &\phantom{1}1.8   \\
%%%\hline\\*[-.4cm]
%$\sum$ (Modeling of background)                    &\quad\quad\phantom{1}4.4 \\*[.1cm]
%\hline
%Hadronization error                                &\phantom{1}3.0  \\
%$\bulnu$ branching fractions                       &\phantom{1}2.8  \\
%\ssbar\ production in   $\bulnu$                  &\phantom{1}3.7  \\
%%%\hline\\*[-.4cm]
%$\sum$ (Modeling of $\Bxulnu$)                     &\quad\quad\phantom{1}5.5  \\*[.1cm]
%%% cout << sqrt(9.5*9.5 + 4.4*4.4 + 3.*3. + 2.8*2.8 + 3.7*3.7) << endl; 
%\hline
%Theoretical error (\lbar\ and \lone)               &\quad\quad17.5\\*[.1cm]
%\hline
%\end{tabular}
%\end{center}
%\end{minipage}
%\label{tab:systematics}
%\end{table}

We have performed extensive studies to determine the systematic
uncertainties on \rusl. % as summarized in Table~\ref{tab:systematics}. 
To establish that the
background from \Bxclnu\ events is adequately simulated we use previously excluded events with charged or neutral kaons as a control sample.
The relative systematic error due to uncertainties in the detection of photons is estimated to be 4.7\% by varying the corrections applied 
to the MC simulation to match the data control  samples.  An additional error of 1.0\% is ascribed to the uncertainty in the simulation of 
showers generated by \KL\ interactions; it is equal to the shift caused by the removal of the \KL\ energy depositions in the MC simulation.
 
An error of 1.0\% is attributed to the uncertainty in the track-finding efficiency.
%Systematic  errors  due to  the  
%selection  criteria related to the 
%reconstruction of charged tracks are determined by randomly removing 1.3\% of all tracks, corresponding to the uncertainty in the track-finding efficiency.
%A relative systematic error $\Delta_r=1.0\%$ is ascribed to this. 
The error due to identification of electrons, muons, and kaons is estimated to be 1.0\%, 1.0\%, and 2.3\%, respectively,  by
varying identification efficiency by $\pm
2\%$, $\pm3\%$, and $\pm2\%$ for $e^{\pm}, \mu^{\pm}$, and $K^{\pm}$,  and  the misidentification rates by $\pm15\%$ for all particle types.

The uncertainty in
the $B_{reco}$ combinatorial background subtraction contributes 3.8\%. It is estimated by
changing the empirical $\mes$ signal function to a Gaussian distribution and by varying the parameters within one standard deviation of the default values. 
%
The limited statistics of the simulated event samples adds an uncertainty of 4.5\%.  The choice of bins for $\mX >
1.55\gevcc$ impacts the fit result at a level of 1.2\%. 
All the above mentioned experimental errors add up to 8.7\%.

The uncertainties in the background modeling due to branching fraction measurements for $B\to D\ell\nu, D^*\ell\nu,...$ and for inclusive and exclusive $D$ meson decays ~\cite{pdg2002} contribute 4.4\%. 


The error due to the hadronization in the
\Bxulnu\ final state is estimated to be 3.0\% by measuring $\rusl$ as a function of the charged and neutral particle multiplicities and performing the fit
with only the nonresonant part of the signal model.
We assign an additional 2.8\% error to account for the uncertainties in the inclusive and exclusive 
branching fractions for charmless semileptonic $B$ decays ~\cite{pdg2002}, plus 3.7\% 
for the veto on strange particles.  Here, we assume a 100\% uncertainty in the  \ssbar\ contents for the resonant and 30\%
for the nonresonant component ~\cite{Althoff:1984iz}.  These three uncertainties contribute a combined error of 5.5\%.

The  efficiencies $\varepsilon_{sel}^{u}$  and $\varepsilon_{\mX}^{u}$
are sensitive to the detailed  modeling of the \Bxulnu\ decays. 
We assess these
uncertainties by  varying the  nonperturbative parameters in  the model
\cite{ref:fazioneubert} within  their errors,  $\lbar =  0.48  \pm 0.12 
\gev$ and  $\lone =  -0.30\pm0.11  \gev^2$,
obtained from the results in Ref.~\cite{ref:cleomxhad} by removing
terms proportional to $1/m_b^3$ and $\alpha_s^2$ from the relation
between the measured observables and \lbar\ and \lone.
%~\cite{ref:cleomxhad}.  Since
%the  measurements of  these parameters  correspond to  calculations at
%order ${\cal O}(1/m_b^3, \alpha_s^2)$, we remove terms proportional to
%$1/m_b^3$  and $\alpha_s^2$  from  the relation  between the  measured
%observables and \lbar\ and \lone\
%
%  obtained by scaling the results in~\cite{ref:cleomxhad} to  the same order in the 
% $1/m_b$ and  $\alpha_s$ expansion as used by
% %correspond to calculations at order ${\cal O}(1/m_b^3, \alpha_s^2)$,
% %we remove terms proportional to $1/m_b^3$ and $\alpha_s^2$ from the
% %relation between the measured observables and \lbar\ and \lone\ to
% the nonresonant MC generator~\cite{ref:fazioneubert}.  
Taking  into
account the correlation of $-0.8$ between \lbar\ and \lone, we arrive at a theoretical error of 17.5\%.  

In summary, we obtain
\begin{equation*}
\rusl = (\allbrbrVal \pm \allbrbrEcstat
%\pm \allbrbrerrmc(MC\,stat) 
\pm \allbrbrEsyst
%{\,\,}^{+\allbrbrEthHi}_{-\allbrbrEthLo} (theo).
\pm\allbrbrEthHi)\times 10^{-2},
\end{equation*}
where the errors are statistical, systematic (experimental plus signal and background modeling), and theoretical, respectively. 
Taking into account common errors we compute
the  double ratio %$\rusl^0/\rusl^- =
$\frac{\BR(\Bzxulnu)}{\BR(\Bzxlnu)}\frac{\BR(\Bpxlnu)}{\BR(\Bpxulnu)}
=0.72 \pm 0.18 (stat) \pm 0.19 (syst)$.  Combining the ratio
\rusl\ with the measured inclusive semileptonic branching fraction 
$\BR(\Bxlnu) = (10.87 \pm 0.18(stat) \pm
0.30(syst))\%$~\cite{Aubert:2002uf}, we have
\begin{equation*}
\BR(\Bxulnu) = 
(\allbr
\pm\allbrE
\pm\allbrEsyst
%{\,\,}^{+\allbrEthHi}_{-\allbrEthLo}(theo))\times10^{-3},
\pm\allbrEthHi)\times10^{-3}.
\end{equation*}

We combine this result with 
%extract $|V_{ub}|$ from the measured inclusive charmless
%semileptonic branching fraction~\cite{Uraltsev:1999rr}
%with the relation  $|V_{ub}|=0.124\sqrt{\frac{\BR(\Bxlnu)}{\tau_B(\rm ps)}} 
the average $B$ lifetime of $\tau_B = 1.608 \pm 0.012 \ps$~\cite{pdg2002,b0bch} and obtain~\cite{Uraltsev:1999rr}
\begin{equation*}
\Vub = (\allvub
\pm\allvubE
\pm\allvubEsyst
%{\,\,}^{+\allvubEthHi}_{-\allvubEthLo}{}(theo)
\pm\allvubEthHi
\pm\allvubEtheo)\times 10^{-3}.
\end{equation*}
The first error is  statistical, the second  systematic, the third gives the theoretical uncertainty in the signal efficiency and 
the extrapolation of \rusl\ to the full $\mX$ range, 
and the fourth combines the perturbative and
nonperturbative uncertainties in the extraction of \Vub\ from the
total decay rate.

% The relative fraction of \Bz\ and \Bp\ in the event
%sample has a negligible effect on this result. 
% These results depend
%on the assumption of global parton-hadron duality to which no error is
%assigned. 

This result is consistent with previous inclusive
measurements~\cite{Barate:1998vv},
%and it is the single most accurate one %
but has a smaller systematic error,
primarily due to larger phase-space acceptance and much higher sample purity.
%%In the future, improved understanding of the signal composition and
%%charm background will significantly reduce the experimental errors,
%%% and more detailed usage of the kinematic of the event
%%and this, together with independent measurements of $ b \to s$ and
%%$ b \to u$ transitions, is expected to constrain the theoretical uncertainties.
In the future, improved understanding of the signal composition and
charm background will significantly reduce the experimental errors,
and this, together with independent measurements of $ b \to s$
transitions and semileptonic $B$ decays, is expected to constrain the
theoretical uncertainties.


%%\input acknow_PRL.tex
We are grateful for the excellent luminosity and machine conditions
provided by our \pep2\ colleagues, 
and for the substantial dedicated effort from
the computing organizations that support \babar.
The collaborating institutions wish to thank 
SLAC for its support and kind hospitality. 
This work is supported by
DOE
and NSF (USA),
NSERC (Canada),
IHEP (China),
CEA and
CNRS-IN2P3
(France),
BMBF and DFG
(Germany),
INFN (Italy),
FOM (The Netherlands),
NFR (Norway),
MIST (Russia), and
PPARC (United Kingdom). 
Individuals have received support from the 
A.~P.~Sloan Foundation, 
Research Corporation,
and Alexander von Humboldt Foundation.

%%\input references2.tex
%\section{References}
\label{sec:references}

\begin{thebibliography}{02}

\bibitem{ckm}
N.~Cabibbo, 
%???
Phys.\ Rev.\ Lett.\  {\bf 10}, 531 (1963); M. Kobaya\-shi and T. Maskawa, 
Prog.\ Th.\ Phys. {\bf 49}, 652 (1973).
\bibitem{cc}
Charge-conjugation  is  implied  throughout the Letter.
% and the symbol $D^{(*)}$ refers to either $D$ or $D^*$. 

% -----
% -- mX
% -----
%\cite{Barger:tz}
\bibitem{Barger:tz}
V.~D.~Barger, C.~S.~Kim, and R.~J.~Phillips,
%``Hadronic Invariant Mass Discriminates B $\to$ U Contributions In Semileptonic B Decays,''
Phys.\ Lett.\ B {\bf 251}, 629 (1990);
%%CITATION = PHLTA,B251,629;%%
%
%\bibitem{Dikeman:1997es}
R.~D.~Dikeman and N.~G.~Uraltsev,
%``Key distributions for charmless semileptonic B decay,''
Nucl.\ Phys.\ B {\bf 509}, 378 (1998);
%arXiv:hep-ph/9703437.
%%CITATION = HEP-PH 9703437;%%
%\cite{Bigi:1997dn}
%\bibitem{Bigi:1997dn}
I.~I.~Bigi, R.~D.~Dikeman, and N.~Uraltsev,
%``The hadronic recoil mass spectrum in semileptonic B decays and  extracting $|$V(ub)$|$ in a model-insensitive way,''
Eur.\ Phys.\ J.\ C {\bf 4}, 453 (1998);
%[arXiv:hep-ph/9706520].
%%CITATION = HEP-PH 9706520;%%
%
%\cite{Falk:1997gj}
%\bibitem{Falk:1997gj}
A.~F.~Falk, Z.~Ligeti, and M.~B.~Wise,
%``V(ub) from the hadronic invariant mass spectrum in semileptonic B  decay,''
Phys.\ Lett.\ B {\bf 406}, 225 (1997).
%[arXiv:hep-ph/9705235].
%%CITATION = HEP-PH 9705235;%%


% ------
% -- OPE
% ------
% %\cite{Chay:1990da}
% \bibitem{Chay:1990da}
% J.~Chay, H.~Georgi and B.~Grinstein,
% %``Lepton Energy Distributions In Heavy Meson Decays From QCD,''
% Phys.\ Lett.\ B {\bf 247}, 399 (1990);
% %%CITATION = PHLTA,B247,399;%%
% %\cite{Bigi:1992su}
% %\bibitem{Bigi:1992su}
% I.~I.~Bigi, N.~G.~Uraltsev and A.~I.~Vainshtein,
% %``Nonperturbative corrections to inclusive beauty and charm decays: QCD versus phenomenological models,''
% Phys.\ Lett.\ B {\bf 293}, 430 (1992)
% [Erratum-ibid.\ B {\bf 297}, 477 (1993)];
% %%CITATION = HEP-PH 9207214;%%
% %\cite{Blok:1992he}
% %%\bibitem{Blok:1992he}
% B.~Blok and M.~A.~Shifman,
% %``The Rule of discarding 1/N(c) in inclusive weak decays. 2,''
% Nucl.\ Phys.\ B {\bf 399}, 459 (1993);
% %[arXiv:hep-ph/9209289].
% %%CITATION = HEP-PH 9209289;%%
% %\cite{Bigi:1992ne}
% %%\bibitem{Bigi:1992ne}
% %kakI.~I.~Bigi, B.~Blok, M.~A.~Shifman, N.~G.~Uraltsev and A.~I.~Vainshtein,
% %kak%``A QCD 'manifesto' on inclusive decays of beauty and charm,''
% %kakarXiv:hep-ph/9212227;
%%CITATION = HEP-PH 9212227;%%
% %\cite{Bigi:1993fe}
% %\bibitem{Bigi:1993fe}
% I.~I.~Bigi, M.~A.~Shifman, N.~G.~Uraltsev and A.~I.~Vainshtein,
% %``QCD predictions for lepton spectra in inclusive heavy flavor decays,''
% Phys.\ Rev.\ Lett.\  {\bf 71}, 496 (1993);
% %[arXiv:hep-ph/9304225].
% %%CITATION = HEP-PH 9304225;%%
% %
% %\cite{Manohar:1993qn}
% %\bibitem{Manohar:1993qn}
% A.~V.~Manohar and M.~B.~Wise,
% %``Inclusive semileptonic B and polarized Lambda(b) decays from QCD,''
% Phys.\ Rev.\ D {\bf 49}, 1310 (1994);
% %%[arXiv:hep-ph/9308246].
% %%CITATION = HEP-PH 9308246;%%
% %\cite{Blok:1993va}
% %\bibitem{Blok:1993va}
% B.~Blok, L.~Koyrakh, M.~A.~Shifman and A.~I.~Vainshtein,
% %``Differential distributions in semileptonic decays of the heavy flavors in QCD,''
% Phys.\ Rev.\ D {\bf 49}, 3356 (1994)
% [Erratum-ibid.\ D {\bf 50}, 3572 (1994)].
% %%[arXiv:hep-ph/9307247].
% %%CITATION = HEP-PH 9307247;%%
%\cite{Barate:1998vv}
\bibitem{Barate:1998vv}
R.~Barate {\it et al.}  [ALEPH Collaboration],
%``Determination of $|$V(ub)$|$ from the measurement of the inclusive  charmless semileptonic branching ratio of b hadrons,''
Eur.\ Phys.\ J.\ C {\bf 6}, 555 (1999);
%%CITATION = EPHJA,C6,555;%%
%
%\cite{Acciarri:1998if}
%\bibitem{Acciarri:1998if}
M.~Acciarri {\it et al.}  [L3 Collaboration],
%``Measurement of the inclusive charmless semileptonic branching fraction  of beauty hadrons and a determination of $|$V(ub)$|$ at LEP,''
Phys.\ Lett.\ B {\bf 436}, 174 (1998);
%%CITATION = PHLTA,B436,174;%%
%
%\bibitem{Abreu:2000mx}
P.~Abreu {\it et al.}  [DELPHI Collaboration],
%``Determination of $|$V(ub)$|$/$|$V(cb)$|$ with DELPHI at LEP,''
Phys.\ Lett.\ B {\bf 478}, 14 (2000);
%%CITATION = HEP-EX 0105054;%%
%
%\cite{Behrens:1999vv}
%\bibitem{Behrens:1999vv}
%B.~H.~Behrens {\it et al.}  [CLEO Collaboration],
%``Measurement of B $\to$ rho l nu decay and $|$V(ub)$|$,''
%Phys.\ Rev.\ D {\bf 61}, 052001 (2000);
%%CITATION = HEP-EX 9905056;%%
%
%\cite{Abbiendi:2001qx}
%\bibitem{Abbiendi:2001qx}
G.~Abbiendi {\it et al.}  [OPAL Collaboration],
%``Measurement of $|$V(ub)$|$ using b hadron semileptonic decay,''
Eur.\ Phys.\ J.\ C {\bf 21}, 399 (2001);
%%CITATION = HEP-EX 0107016;%%
%
%\cite{Bornheim:2002du}
%\bibitem{Bornheim:2002du}
A.~Bornheim {\it et al.}  [CLEO Collaboration],
%``Improved measurement of $|$V(ub)$|$ with inclusive semileptonic B decays,''
Phys.\ Rev.\ Lett.\  {\bf 88}, 231803 (2002).
% %%CITATION = HEP-EX 0202019;%%
% %\cite{Aubert:2002ph}
% %\bibitem{Aubert:2002ph}
% B.~Aubert {\it et al.}  [BABAR Collaboration],
% %``Measurement of the CKM matrix element $|$V(ub)$|$ with charmless exclusive  semileptonic B meson decays at BABAR,''
% arXiv:hep-ex/0207080.
% %%CITATION = HEP-EX 0207080;%%
 
\bibitem{duality} The results of this analysis depend on the
assumption of   parton-hadron duality to which no error is assigned.
\bibitem{babarnim}
%B.Aubert {\it et al.}, [\babar\ Collaboration], SLAC-PUB-8569, [\hepex{0105044}].
B.~Aubert {\it et al.}  [BABAR Collaboration],
%``The BaBar detector,''
Nucl.\ Instrum.\ Meth.\ A {\bf 479}, 1 (2002).
%%CITATION = HEP-EX 0105044;%%

\bibitem{geant}
S.~Agostinelli {\it et al.}  [GEANT4 Collaboration],
%``GEANT4: A simulation toolkit,''
SLAC-PUB-9350, CERN-IT-2002-003 (2002).

\bibitem{ref:isgwtwo}
%D.~Scora and N.~Isgur, \prd 52 1995 2783 .
D.~Scora and N.~Isgur,
%``Semileptonic meson decays in the quark model: An update,''
Phys.\ Rev.\ D {\bf 52}, 2783 (1995).
%%CITATION = HEP-PH 9503486;%%

\bibitem{ref:fazioneubert} 
%F.D.~Fazio, M.~Neubert, JHEP 9906:017 (1999).
F.~De Fazio and M.~Neubert,
%``B $\to$ X/u l anti-nu/l decay distributions to order alpha(s),''
JHEP {\bf 9906}, 017 (1999).
%%CITATION = HEP-PH 9905351;%%


\bibitem{ref:jetset} 
%Jetset from B0->gamma gamma PRL
T.~Sj\"ostrand, Comput. Phys. Commun.~{\bf 82}, 74 (1994).

\bibitem{ref:duboscq}
%CLEO Collaboration, J.E.~Duboscq {\it et al.}, \prl 76 1996 3898 .
J.~E.~Duboscq {\it et al.}  [CLEO Collaboration],
%``Measurement of the form-factors for anti-B0 $\to$ D*+ lepton- anti-neutrino,''
Phys.\ Rev.\ Lett.\  {\bf 76}, 3898 (1996).
%%CITATION = PRLTA,76,3898;%%

%\bibitem{parent}By $D^{(*)}$ ( $D^{(**)}$) we refer to both $D$ and $D^*$ ($D^{**}$). 

\bibitem{ref:goityroberts}
%J.L.~Goity and W.~Roberts, \prd 51 1995 3459 .
J.~L.~Goity and W.~Roberts,
%``Soft Pion Emission In Semileptonic B Meson Decays,''
Phys.\ Rev.\ D {\bf 51}, 3459 (1995).
%%CITATION = HEP-PH 9406236;%%


%\cite{Aubert:2002uf}
\bibitem{Aubert:2002uf}
B.~Aubert {\it et al.}  [BABAR Collaboration],
%``Measurement of the branching fraction for inclusive semileptonic B  meson decays,''
Phys.\ Rev.\ D {\bf 67}, 031101 (2003).
%%[arXiv:hep-ex/0208018].
%%CITATION = HEP-EX 0208018;%%


%%\cite{Aubert:2002gi}
%\bibitem{Aubert:2002gi}
%B.~Aubert {\it et al.}  [BABAR Collaboration],
%%``Measurement of the B0 lifetime with partially reconstructed  B0 $\to$ D*- l+ nu/l decays,''
%Phys.\ Rev.\ Lett.\  {\bf 89}, 011802 (2002);
%Erratum-ibid.\  {\bf 89}, 169903 (2002).
%%%CITATION = HEP-EX 0202005;%%


\bibitem{argusf}
%H.~Albrecht {\it et al.}, The ARGUS Collaboration,  \zpc 48 543 1990 .
H.~Albrecht {\it et al.}  [ARGUS Collaboration],
%``Exclusive Hadronic Decays Of B Mesons,''
Z.\ Phys.\ C {\bf 48}, 543 (1990).
%%CITATION = ZEPYA,C48,543;%%

\bibitem {cry}
%Crystal Ball Collaboration, A study of the radiative cascade transition between the upsilon-prime and upsilon resonances, DESY F31-86-02
T.~Skwarnicki  [Crystal Ball Collaboration],
%``A Study Of The Radiative Cascade Transitions Between The Upsilon-Prime And Upsilon Resonances,''
DESY F31-86-02.
%\href{http://www.slac.stanford.edu/spires/find/hep/www?r=desy\%2Ff31-86-02}{SPIRES entry}


\bibitem{pdg2002}
%K. Hagiwara {\it et al.}, the Particle Data Group, {\em Review of Particle
%Physics D66}, 010001 (2002).
K.~Hagiwara {\it et al.}  [Particle Data Group Collaboration],
%``Review Of Particle Physics,''
Phys.\ Rev.\ D {\bf 66}, 010001 (2002).
%%CITATION = PHRVA,D66,010001;%%


\bibitem{Althoff:1984iz}
M.~Althoff {\it et al.}  [TASSO Collaboration],
%``A Detailed Study Of Strange Particle Production In E+ E- Annihilation At High-Energy,''
Z.\ Phys.\ C {\bf 27}, 27 (1985).
%W.~Bartel {\it et al.}  [JADE Collaboration],
%``Charged Particle And Neutral Kaon Production In E+ E- Annihilation At Petra,''
%Z.\ Phys.\ C {\bf 20}, 187 (1983);
%V.~Luth {\it et al.},
%``K0 Production In E+ E- Annihilation,''
%Phys.\ Lett.\ B {\bf 70}, 120 (1977).

\bibitem{ref:cleomxhad}
D.~Cronin-Hennessy {\it et al.} [CLEO Collaboration], Phys.\ Rev.\ Lett.\  {\bf 87},  251808 (2001).
We assume that the shape function parameters in Ref.~\cite{ref:fazioneubert} can be related to the HQET parameters
\lbar\ and \lone.

\bibitem{b0bch} The impact of the uncertainty of the fraction of neutral and charged $B$ mesons is negligible.

\bibitem{Uraltsev:1999rr}
We follow the prescription on 
page 708 of~\cite{pdg2002}, based on 
%; see, \eg\ 
N.~Uraltsev,
%``Theoretical uncertainties in Gamma(sl)(b $\to$ u),''
Int.\ J.\ Mod.\ Phys.\ A {\bf 14}, 4641 (1999) and
A.~H.~Hoang, Z.~Ligeti, and A.~V.~Manohar,
%``B decays in the Upsilon expansion,''
Phys.\ Rev.\ D {\bf 59}, 074017 (1999).



% --------
% -- |Vub|
% --------
%%\bibitem{Uraltsev:1999rr}
%%N.~Uraltsev,
%%%``Theoretical uncertainties in Gamma(sl)(b $\to$ u),''
%%Int.\ J.\ Mod.\ Phys.\ A {\bf 14}, 4641 (1999);
%%%
%%%%\bibitem{V6}  
%%%A.H.~Hoang, Z.~Ligeti, A.V.~Manohar, Phys. Rev. Lett. 82 (1999) 277;
%%A.~H.~Hoang, Z.~Ligeti and A.~V.~Manohar,
%%%``B decay and the Upsilon mass,''
%%Phys.\ Rev.\ Lett.\  {\bf 82}, 277 (1999).
%%%CITATION = HEP-PH 9809423;%%
%%%A.H.~Hoang, Z.~Ligeti, A.V.~Manohar, Phys. Rev. D59 (1999) 074017.
%%A.~H.~Hoang, Z.~Ligeti and A.~V.~Manohar,
%%%%``B decays in the Upsilon expansion,''
%%Phys.\ Rev.\ D {\bf 59}, 074017 (1999).
%%%CITATION = HEP-PH 9811239;%%
%%%% ----------------------------------------------------------------------

%\bibitem{Uraltsev:1999rr}
%Page 708 of~\cite{pdg2002}; see, \eg\ N.~Uraltsev,
%%``Theoretical uncertainties in Gamma(sl)(b $\to$ u),''
%Int.\ J.\ Mod.\ Phys.\ A {\bf 14}, 4641 (1999);
%A.~H.~Hoang, Z.~Ligeti, and A.~V.~Manohar,
%%%``B decays in the Upsilon expansion,''
%Phys.\ Rev.\ D {\bf 59}, 074017 (1999).


% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\end{thebibliography}


\end{document}

hep-ex0307062.extracted_bib
\begin{thebibliography}{02}

\bibitem{ckm}
N.~Cabibbo, 
%???
Phys.\ Rev.\ Lett.\  {\bf 10}, 531 (1963); M. Kobaya\-shi and T. Maskawa, 
Prog.\ Th.\ Phys. {\bf 49}, 652 (1973).
\bibitem{cc}
Charge-conjugation  is  implied  throughout the Letter.
% and the symbol $D^{(*)}$ refers to either $D$ or $D^*$. 

% -----
% -- mX
% -----
%\cite{Barger:tz}
\bibitem{Barger:tz}
V.~D.~Barger, C.~S.~Kim, and R.~J.~Phillips,
%``Hadronic Invariant Mass Discriminates B $\to$ U Contributions In Semileptonic B Decays,''
Phys.\ Lett.\ B {\bf 251}, 629 (1990);
%%CITATION = PHLTA,B251,629;%%
%
%\bibitem{Dikeman:1997es}
R.~D.~Dikeman and N.~G.~Uraltsev,
%``Key distributions for charmless semileptonic B decay,''
Nucl.\ Phys.\ B {\bf 509}, 378 (1998);
%arXiv:hep-ph/9703437.
%%CITATION = HEP-PH 9703437;%%
%\cite{Bigi:1997dn}
%\bibitem{Bigi:1997dn}
I.~I.~Bigi, R.~D.~Dikeman, and N.~Uraltsev,
%``The hadronic recoil mass spectrum in semileptonic B decays and  extracting $|$V(ub)$|$ in a model-insensitive way,''
Eur.\ Phys.\ J.\ C {\bf 4}, 453 (1998);
%[arXiv:hep-ph/9706520].
%%CITATION = HEP-PH 9706520;%%
%
%\cite{Falk:1997gj}
%\bibitem{Falk:1997gj}
A.~F.~Falk, Z.~Ligeti, and M.~B.~Wise,
%``V(ub) from the hadronic invariant mass spectrum in semileptonic B  decay,''
Phys.\ Lett.\ B {\bf 406}, 225 (1997).
%[arXiv:hep-ph/9705235].
%%CITATION = HEP-PH 9705235;%%


% ------
% -- OPE
% ------
% %\cite{Chay:1990da}
% \bibitem{Chay:1990da}
% J.~Chay, H.~Georgi and B.~Grinstein,
% %``Lepton Energy Distributions In Heavy Meson Decays From QCD,''
% Phys.\ Lett.\ B {\bf 247}, 399 (1990);
% %%CITATION = PHLTA,B247,399;%%
% %\cite{Bigi:1992su}
% %\bibitem{Bigi:1992su}
% I.~I.~Bigi, N.~G.~Uraltsev and A.~I.~Vainshtein,
% %``Nonperturbative corrections to inclusive beauty and charm decays: QCD versus phenomenological models,''
% Phys.\ Lett.\ B {\bf 293}, 430 (1992)
% [Erratum-ibid.\ B {\bf 297}, 477 (1993)];
% %%CITATION = HEP-PH 9207214;%%
% %\cite{Blok:1992he}
% %%\bibitem{Blok:1992he}
% B.~Blok and M.~A.~Shifman,
% %``The Rule of discarding 1/N(c) in inclusive weak decays. 2,''
% Nucl.\ Phys.\ B {\bf 399}, 459 (1993);
% %[arXiv:hep-ph/9209289].
% %%CITATION = HEP-PH 9209289;%%
% %\cite{Bigi:1992ne}
% %%\bibitem{Bigi:1992ne}
% %kakI.~I.~Bigi, B.~Blok, M.~A.~Shifman, N.~G.~Uraltsev and A.~I.~Vainshtein,
% %kak%``A QCD 'manifesto' on inclusive decays of beauty and charm,''
% %kakarXiv:hep-ph/9212227;
%%CITATION = HEP-PH 9212227;%%
% %\cite{Bigi:1993fe}
% %\bibitem{Bigi:1993fe}
% I.~I.~Bigi, M.~A.~Shifman, N.~G.~Uraltsev and A.~I.~Vainshtein,
% %``QCD predictions for lepton spectra in inclusive heavy flavor decays,''
% Phys.\ Rev.\ Lett.\  {\bf 71}, 496 (1993);
% %[arXiv:hep-ph/9304225].
% %%CITATION = HEP-PH 9304225;%%
% %
% %\cite{Manohar:1993qn}
% %\bibitem{Manohar:1993qn}
% A.~V.~Manohar and M.~B.~Wise,
% %``Inclusive semileptonic B and polarized Lambda(b) decays from QCD,''
% Phys.\ Rev.\ D {\bf 49}, 1310 (1994);
% %%[arXiv:hep-ph/9308246].
% %%CITATION = HEP-PH 9308246;%%
% %\cite{Blok:1993va}
% %\bibitem{Blok:1993va}
% B.~Blok, L.~Koyrakh, M.~A.~Shifman and A.~I.~Vainshtein,
% %``Differential distributions in semileptonic decays of the heavy flavors in QCD,''
% Phys.\ Rev.\ D {\bf 49}, 3356 (1994)
% [Erratum-ibid.\ D {\bf 50}, 3572 (1994)].
% %%[arXiv:hep-ph/9307247].
% %%CITATION = HEP-PH 9307247;%%
%\cite{Barate:1998vv}
\bibitem{Barate:1998vv}
R.~Barate {\it et al.}  [ALEPH Collaboration],
%``Determination of $|$V(ub)$|$ from the measurement of the inclusive  charmless semileptonic branching ratio of b hadrons,''
Eur.\ Phys.\ J.\ C {\bf 6}, 555 (1999);
%%CITATION = EPHJA,C6,555;%%
%
%\cite{Acciarri:1998if}
%\bibitem{Acciarri:1998if}
M.~Acciarri {\it et al.}  [L3 Collaboration],
%``Measurement of the inclusive charmless semileptonic branching fraction  of beauty hadrons and a determination of $|$V(ub)$|$ at LEP,''
Phys.\ Lett.\ B {\bf 436}, 174 (1998);
%%CITATION = PHLTA,B436,174;%%
%
%\bibitem{Abreu:2000mx}
P.~Abreu {\it et al.}  [DELPHI Collaboration],
%``Determination of $|$V(ub)$|$/$|$V(cb)$|$ with DELPHI at LEP,''
Phys.\ Lett.\ B {\bf 478}, 14 (2000);
%%CITATION = HEP-EX 0105054;%%
%
%\cite{Behrens:1999vv}
%\bibitem{Behrens:1999vv}
%B.~H.~Behrens {\it et al.}  [CLEO Collaboration],
%``Measurement of B $\to$ rho l nu decay and $|$V(ub)$|$,''
%Phys.\ Rev.\ D {\bf 61}, 052001 (2000);
%%CITATION = HEP-EX 9905056;%%
%
%\cite{Abbiendi:2001qx}
%\bibitem{Abbiendi:2001qx}
G.~Abbiendi {\it et al.}  [OPAL Collaboration],
%``Measurement of $|$V(ub)$|$ using b hadron semileptonic decay,''
Eur.\ Phys.\ J.\ C {\bf 21}, 399 (2001);
%%CITATION = HEP-EX 0107016;%%
%
%\cite{Bornheim:2002du}
%\bibitem{Bornheim:2002du}
A.~Bornheim {\it et al.}  [CLEO Collaboration],
%``Improved measurement of $|$V(ub)$|$ with inclusive semileptonic B decays,''
Phys.\ Rev.\ Lett.\  {\bf 88}, 231803 (2002).
% %%CITATION = HEP-EX 0202019;%%
% %\cite{Aubert:2002ph}
% %\bibitem{Aubert:2002ph}
% B.~Aubert {\it et al.}  [BABAR Collaboration],
% %``Measurement of the CKM matrix element $|$V(ub)$|$ with charmless exclusive  semileptonic B meson decays at BABAR,''
% arXiv:hep-ex/0207080.
% %%CITATION = HEP-EX 0207080;%%
 
\bibitem{duality} The results of this analysis depend on the
assumption of   parton-hadron duality to which no error is assigned.
\bibitem{babarnim}
%B.Aubert {\it et al.}, [\babar\ Collaboration], SLAC-PUB-8569, [\hepex{0105044}].
B.~Aubert {\it et al.}  [BABAR Collaboration],
%``The BaBar detector,''
Nucl.\ Instrum.\ Meth.\ A {\bf 479}, 1 (2002).
%%CITATION = HEP-EX 0105044;%%

\bibitem{geant}
S.~Agostinelli {\it et al.}  [GEANT4 Collaboration],
%``GEANT4: A simulation toolkit,''
SLAC-PUB-9350, CERN-IT-2002-003 (2002).

\bibitem{ref:isgwtwo}
%D.~Scora and N.~Isgur, \prd 52 1995 2783 .
D.~Scora and N.~Isgur,
%``Semileptonic meson decays in the quark model: An update,''
Phys.\ Rev.\ D {\bf 52}, 2783 (1995).
%%CITATION = HEP-PH 9503486;%%

\bibitem{ref:fazioneubert} 
%F.D.~Fazio, M.~Neubert, JHEP 9906:017 (1999).
F.~De Fazio and M.~Neubert,
%``B $\to$ X/u l anti-nu/l decay distributions to order alpha(s),''
JHEP {\bf 9906}, 017 (1999).
%%CITATION = HEP-PH 9905351;%%


\bibitem{ref:jetset} 
%Jetset from B0->gamma gamma PRL
T.~Sj\"ostrand, Comput. Phys. Commun.~{\bf 82}, 74 (1994).

\bibitem{ref:duboscq}
%CLEO Collaboration, J.E.~Duboscq {\it et al.}, \prl 76 1996 3898 .
J.~E.~Duboscq {\it et al.}  [CLEO Collaboration],
%``Measurement of the form-factors for anti-B0 $\to$ D*+ lepton- anti-neutrino,''
Phys.\ Rev.\ Lett.\  {\bf 76}, 3898 (1996).
%%CITATION = PRLTA,76,3898;%%

%\bibitem{parent}By $D^{(*)}$ ( $D^{(**)}$) we refer to both $D$ and $D^*$ ($D^{**}$). 

\bibitem{ref:goityroberts}
%J.L.~Goity and W.~Roberts, \prd 51 1995 3459 .
J.~L.~Goity and W.~Roberts,
%``Soft Pion Emission In Semileptonic B Meson Decays,''
Phys.\ Rev.\ D {\bf 51}, 3459 (1995).
%%CITATION = HEP-PH 9406236;%%


%\cite{Aubert:2002uf}
\bibitem{Aubert:2002uf}
B.~Aubert {\it et al.}  [BABAR Collaboration],
%``Measurement of the branching fraction for inclusive semileptonic B  meson decays,''
Phys.\ Rev.\ D {\bf 67}, 031101 (2003).
%%[arXiv:hep-ex/0208018].
%%CITATION = HEP-EX 0208018;%%


%%\cite{Aubert:2002gi}
%\bibitem{Aubert:2002gi}
%B.~Aubert {\it et al.}  [BABAR Collaboration],
%%``Measurement of the B0 lifetime with partially reconstructed  B0 $\to$ D*- l+ nu/l decays,''
%Phys.\ Rev.\ Lett.\  {\bf 89}, 011802 (2002);
%Erratum-ibid.\  {\bf 89}, 169903 (2002).
%%%CITATION = HEP-EX 0202005;%%


\bibitem{argusf}
%H.~Albrecht {\it et al.}, The ARGUS Collaboration,  \zpc 48 543 1990 .
H.~Albrecht {\it et al.}  [ARGUS Collaboration],
%``Exclusive Hadronic Decays Of B Mesons,''
Z.\ Phys.\ C {\bf 48}, 543 (1990).
%%CITATION = ZEPYA,C48,543;%%

\bibitem {cry}
%Crystal Ball Collaboration, A study of the radiative cascade transition between the upsilon-prime and upsilon resonances, DESY F31-86-02
T.~Skwarnicki  [Crystal Ball Collaboration],
%``A Study Of The Radiative Cascade Transitions Between The Upsilon-Prime And Upsilon Resonances,''
DESY F31-86-02.
%\href{http://www.slac.stanford.edu/spires/find/hep/www?r=desy\%2Ff31-86-02}{SPIRES entry}


\bibitem{pdg2002}
%K. Hagiwara {\it et al.}, the Particle Data Group, {\em Review of Particle
%Physics D66}, 010001 (2002).
K.~Hagiwara {\it et al.}  [Particle Data Group Collaboration],
%``Review Of Particle Physics,''
Phys.\ Rev.\ D {\bf 66}, 010001 (2002).
%%CITATION = PHRVA,D66,010001;%%


\bibitem{Althoff:1984iz}
M.~Althoff {\it et al.}  [TASSO Collaboration],
%``A Detailed Study Of Strange Particle Production In E+ E- Annihilation At High-Energy,''
Z.\ Phys.\ C {\bf 27}, 27 (1985).
%W.~Bartel {\it et al.}  [JADE Collaboration],
%``Charged Particle And Neutral Kaon Production In E+ E- Annihilation At Petra,''
%Z.\ Phys.\ C {\bf 20}, 187 (1983);
%V.~Luth {\it et al.},
%``K0 Production In E+ E- Annihilation,''
%Phys.\ Lett.\ B {\bf 70}, 120 (1977).

\bibitem{ref:cleomxhad}
D.~Cronin-Hennessy {\it et al.} [CLEO Collaboration], Phys.\ Rev.\ Lett.\  {\bf 87},  251808 (2001).
We assume that the shape function parameters in Ref.~\cite{ref:fazioneubert} can be related to the HQET parameters
\lbar\ and \lone.

\bibitem{b0bch} The impact of the uncertainty of the fraction of neutral and charged $B$ mesons is negligible.

\bibitem{Uraltsev:1999rr}
We follow the prescription on 
page 708 of~\cite{pdg2002}, based on 
%; see, \eg\ 
N.~Uraltsev,
%``Theoretical uncertainties in Gamma(sl)(b $\to$ u),''
Int.\ J.\ Mod.\ Phys.\ A {\bf 14}, 4641 (1999) and
A.~H.~Hoang, Z.~Ligeti, and A.~V.~Manohar,
%``B decays in the Upsilon expansion,''
Phys.\ Rev.\ D {\bf 59}, 074017 (1999).



% --------
% -- |Vub|
% --------
%%\bibitem{Uraltsev:1999rr}
%%N.~Uraltsev,
%%%``Theoretical uncertainties in Gamma(sl)(b $\to$ u),''
%%Int.\ J.\ Mod.\ Phys.\ A {\bf 14}, 4641 (1999);
%%%
%%%%\bibitem{V6}  
%%%A.H.~Hoang, Z.~Ligeti, A.V.~Manohar, Phys. Rev. Lett. 82 (1999) 277;
%%A.~H.~Hoang, Z.~Ligeti and A.~V.~Manohar,
%%%``B decay and the Upsilon mass,''
%%Phys.\ Rev.\ Lett.\  {\bf 82}, 277 (1999).
%%%CITATION = HEP-PH 9809423;%%
%%%A.H.~Hoang, Z.~Ligeti, A.V.~Manohar, Phys. Rev. D59 (1999) 074017.
%%A.~H.~Hoang, Z.~Ligeti and A.~V.~Manohar,
%%%%``B decays in the Upsilon expansion,''
%%Phys.\ Rev.\ D {\bf 59}, 074017 (1999).
%%%CITATION = HEP-PH 9811239;%%
%%%% ----------------------------------------------------------------------

%\bibitem{Uraltsev:1999rr}
%Page 708 of~\cite{pdg2002}; see, \eg\ N.~Uraltsev,
%%``Theoretical uncertainties in Gamma(sl)(b $\to$ u),''
%Int.\ J.\ Mod.\ Phys.\ A {\bf 14}, 4641 (1999);
%A.~H.~Hoang, Z.~Ligeti, and A.~V.~Manohar,
%%%``B decays in the Upsilon expansion,''
%Phys.\ Rev.\ D {\bf 59}, 074017 (1999).


% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\end{thebibliography}