The Chiral Fermion Meson Model at Finite Temperature

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 tachyo...

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Bibliographic Details
Published inarXiv.org
Main Authors Caldas, H C G, Mota, A L, Nemes, M C
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 17.11.2000
Subjects
Fermions
High temperature
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Summary: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.
ISSN:2331-8422
DOI:10.48550/arxiv.0005180