Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Coexistence of color superconductivity and chiral symmetry breaking
  within the NJL model   The phase diagram for quark matter is investigated within a simple
Nambu-Jona-Lasinio model without vector correlations. It is found that the
phase structure in the temperature-density plane depends sensitively on the
parametrization of the model. We present two schemes of parametrization of the
model where within the first one a first order phase transition from a phase
with broken chiral symmetry to a color superconducting phase for temperatures
below the triple point at T_t= 55 MeV occurs whereas for the second one a
second order phase transition for temperatures below T_t = 7 MeV is found. In
the latter case, there is also a coexistence phase of broken chiral symmetry
with color superconductivity, which is a new finding within this class of
models. Possible consequences for the phenomenology of the QCD phase transition
at high baryon densities are discussed.

30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
15
The categories of this paper are: nucl-ex
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The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex
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
35
The categories of this paper are: mtrl-th
25
The categories of this paper are: patt-sol
6
The categories of this paper are: astro-ph
18
The categories of this paper are: econ
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga