Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Model of the Phase Transition Mimicking the Pasta Phase in Cold and
  Dense Quark-Hadron Matter   A simple mixed phase model mimicking so-called "pasta" phases in the
quark-hadron phase transition is developed and applied to static neutron stars
for the case of DD2 type hadonic and NJL type quark matter models. The
influence of the mixed phase on the mass-radius relation of the compact stars
is investigated. Model parameters are chosen such that the results are in
agreement with the observational constraints for masses and radii of pulsars.

2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
34
The categories of this paper are: chem-ph
12
The categories of this paper are: nucl-th
24
The categories of this paper are: dg-ga
33
The categories of this paper are: plasm-ph