Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nuclear thermodynamics and the in-medium chiral condensate   The temperature dependence of the chiral condensate in isospin-symmetric
nuclear matter at varying baryon density is investigated using thermal
in-medium chiral effective field theory. This framework provides a realistic
approach to the thermodynamics of the correlated nuclear many-body system and
permits calculating systematically the pion-mass dependence of the free energy
per particle. One- and two-pion exchange processes, $\Delta(1232)$-isobar
excitations, Pauli blocking corrections and three-body correlations are treated
up to and including three loops in the expansion of the free energy density. It
is found that nuclear matter remains in the Nambu-Goldstone phase with
spontaneously broken chiral symmetry in the temperature range $T\lesssim
100\,$MeV and at baryon densities at least up to about twice the density of
normal nuclear matter, $2\rho_0 \simeq 0.3\, $fm$^{-3}$. Effects of the nuclear
liquid-gas phase transition on the chiral condensate at low temperatures are
also discussed.

23
The categories of this paper are: solv-int
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
33
The categories of this paper are: plasm-ph
31
The categories of this paper are: ao-sci
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
27
The categories of this paper are: comp-gas
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph