Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pentaquark Symmetries, Selection Rules and another potentially Narrow
  State   We identify essential differences between the pentaquark and chiral soliton
models of \10bar$_5$ and {\bf 8}$_5$ pentaquarks and conventional {\bf 8}$_3$
states, which are experimentally measurable. We show how the decays of $\Xi_5$
states in particular can test models of the pentaquarks, recommend study of the
relative branching ratios of e.g. $\Xi^{-}_5 \to \Xi^-\pi^0:\Xi^0\pi^-$, and
predict that the decay amplitude $\Xi_5 \to \Xi^*\pi$ is zero at leading order
in pentaquark models for any mixture of \10bar and the associated {\bf 8}$_5$.
We also include a pedagogic discussion of wavefunctions in the pentaquark
picture and show that pentaquark models have this {\bf 8}$_5$ with $F/D=1/3$,
in leading order forbidding $\Xi_5 \to \Lambda K$. The role of Fermi-Dirac
symmetry in the $qqqq$ wavefunction and its implications for the width of
pentaquarks are briefly discussed. The relative couplings $g^2(\Theta_Q N
K_Q^*)/g^2(\Theta_Q N K_Q) = 3$ for $Q \equiv s,c,b$. A further potentially
narrow state $\Lambda$ in {\bf 8}$_5$ with $J^P = 3/2^+$ is predicted around
1650 MeV.

25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph
32
The categories of this paper are: atom-ph
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
19
The categories of this paper are: eess
2
The categories of this paper are: math
23
The categories of this paper are: solv-int
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
16
The categories of this paper are: stat