An effective lagrangian with broken scale and chiral symmetry III. Mesons at finite temperature

G. W. Carter, P. J. Ellis, S. Rudaz

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

We investigate the finite temperature behavior of the meson sector of an effective Lagrangian which describes nuclear matter. A method is developed for evaluating the logarithmic terms in the effective potential which involves expansion and resummation; the result is written in terms of the exponential integral. In the absence of explicit chiral symmetry breaking, a phase transition restores the symmetry at a temperature of 190 MeV; when the pion has a mass the transition is smooth. At a much higher temperature a first order phase transition restores scale symmetry.

Original languageEnglish (US)
Pages (from-to)317-329
Number of pages13
JournalNuclear Physics A
Volume618
Issue number3
DOIs
StatePublished - Jun 2 1997

Keywords

  • Chiral symmetry restoration
  • Effective lagrangian
  • Finite temperature

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