The Chiral Fermion Meson Model at Finite Temperature
High Energy Physics - Phenomenology
2009-10-31 v4
Abstract
We study the chiral fermion meson model which is the well known linear sigma model of Gell-Mann-and-Levy at finite temperature.A modified self-consistent resummation (MSCR) which resums higher order terms in the perturbative expansion is proposed. It is shown that with the MSCR the problem of tachyonic masses is solved, the renormalization of the gap equations is carried out and the Goldstone's theorem is verified. We also apply the method to investigate another known case at high temperature and compare with results found in the literature.
Keywords
Cite
@article{arxiv.hep-ph/0005180,
title = {The Chiral Fermion Meson Model at Finite Temperature},
author = {H. C. G. Caldas and A. L. Mota and M. C. Nemes},
journal= {arXiv preprint arXiv:hep-ph/0005180},
year = {2009}
}
Comments
31 pages, 9 EPS figures. Final version with extended Concluding Remarks section, accepted for publication in Phys. Rev. D