Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The role of the thermal $f_0(500)$ or sigma in chiral symmetry
  restoration   We analyze the $f_0(500)$ state generated as a pole of $\pi\pi$ scattering
within unitarized low-energy effective theories at finite temperature. First,
we report on the $\sigma$ self-energy in the LSM, which is used as a benchmark
in order to test the hypotheses carried out. The relation of that thermal pole
with the scalar susceptibility is studied within a scalar saturation approach,
which yields results complying with lattice data. The robustness and
predictability of this method are studied in terms of the low-energy constants
involved and the unitarization method. Our analysis highlights the importance
of this thermal state to describe the main qualitative features of the scalar
susceptibility around the chiral transition.

1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
24
The categories of this paper are: dg-ga
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex