Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: $P_c(4380)$ in a constituent quark model   The constituent quark model with color-spin hyperfine potential is used to
investigate the property of a compact pentaquark configuration with
$J^p$=$3/2^-$ and isospin=1/2, which is the most likely quantum number of one
of the recently observed exotic baryon states at LHCb. Starting from the
characterization of the isospin, color, and spin states for the pentaquark
configuration, we construct the total wave function composed of the spatial
wave function, which we take to be symmetric and in S-wave, and the four
orthogonal isospin $\otimes$ color $\otimes$ spin states that satisfy the Pauli
principle. We then use the variational method to find a compact stable
configuration. While there are compact configurations where the hyperfine
potential is more attractive than the sum of $p$ and $J/\psi$ hyperfine
potentials, we find that the ground state is the isolated $p$ and $J/\psi$
state. Furthermore, the mass of the excited state lies far above the observed
pentaquark state leading us to conclude that the observed states can not be a
compact multiquark configuration with $J^p$=$3/2^-$.

9
The categories of this paper are: nlin
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
20
The categories of this paper are: acc-phys
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
6
The categories of this paper are: astro-ph
1
The categories of this paper are: cs
24
The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex