Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Critical endpoint in the Polyakov-loop extended NJL model   The critical endpoint (CEP) and the phase structure are studied in the
Polyakov-loop extended Nambu--Jona-Lasinio model in which the scalar type
eight-quark (\sigma^4) interaction and the vector type four-quark interaction
are newly added. The \sigma^4 interaction largely shifts the CEP toward higher
temperature and lower chemical potential, while the vector type interaction
does oppositely. At zero chemical potential, the \sigma^4 interaction moves the
pseudo-critical temperature of the chiral phase transition to the vicinity of
that of the deconfinement phase transition.

23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
19
The categories of this paper are: eess
33
The categories of this paper are: plasm-ph
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
2
The categories of this paper are: math