Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Emergence of a new $SU(4)$ symmetry in the baryon spectrum   Recently a large degeneracy of $J=1$ mesons, that is larger than the $SU(2)_L
\times SU(2)_R \times U(1)_A$ symmetry of the QCD Lagrangian, has been
discovered upon truncation of the near-zero modes from the valence quark
propagators. It has been found that this degeneracy represents the $SU(4)$
group that includes the chiral rotations as well as the mixing of left- and
right-handed quarks. This symmetry group turns out to be a symmetry of
confinement in QCD. Consequently, one expects that the same symmetry should
persist upon the near-zero mode removal in other hadron sectors as well. It has
been shown that indeed the $J=2$ mesons follow the same symmetry pattern upon
the low-lying mode elimination. Here we demonstrate the $SU(4)$ symmetry of
baryons once the near-zero modes are removed from the quark propagators. We
also show a degeneracy of states belonging to different irreducible
representations of $SU(4)$. This implies a larger symmetry, that includes
$SU(4)$ as a subgroup.

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The categories of this paper are: cs
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: eess
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The categories of this paper are: econ
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
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The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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The categories of this paper are: physics
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The categories of this paper are: quant-ph