Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The critical surface of the SU(3)_L x SU(3)_R chiral quark model at
  non-zero baryon density   The boundary of the first order chiral phase transition region is studied in
the m_pi-m_K-mu_B space using the one-loop optimized perturbation theory for
the resummation of the perturbative series. Chiral perturbation theory for
mesons and baryons is used for the T=0 parametrization of the model. The
surface of second order transition points bends with increasing mu_B towards
the physical point of the m_pi-m_K mass plane allowing for the existence of the
critical end point in the mu_B-T plane at the physical point. The location and
scaling region of the CEP is explored.

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The categories of this paper are: astro-ph
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an