Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two-flavor color superconductivity in the Fierz-transfromed
  Nambu--Jona-Lasinio model   The color superconducting phase of two-flavor quark matter is studied under a
Fierz-transformed Lagrangian. In the Fierz-transformed Lagrangian both the
quark-antiquark and quark-quark channel are included. Two parameters $\alpha$
and $\beta$ are introduced to weight the Fierz-transformed quark-antiquark
Lagrangian and quark-quark Lagrangian, respectively. The couplings of different
interaction channel are thus fixed by the two coefficients other than five free
parameters. The interplay between chiral symmetry restoration and the formation
of color superconducting phases are discussed. It is found that the increase of
$\alpha$ leads the chiral phase transition from first order to crossover. The
calculated specific heat shows jump at critical temperature which confirms the
phase transition. The increase of $\beta$ leads the pseudo-critical chemical
potential reduce. With large $\beta$ the superconductors gap $\Delta$ can be
larger than the typical value and the well-known BCS relation between critical
temperature and gap is well fitted.

20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat
36
The categories of this paper are: cmp-lg
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
32
The categories of this paper are: atom-ph
19
The categories of this paper are: eess