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

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

Research output: Contribution to journalArticle

28 Citations (Scopus)

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

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mesons
symmetry
temperature
broken symmetry
pions
sectors
expansion

Keywords

  • Chiral symmetry restoration
  • Effective lagrangian
  • Finite temperature

Cite this

An effective lagrangian with broken scale and chiral symmetry III. Mesons at finite temperature. / Carter, G. W.; Ellis, P. J.; Rudaz, Serge.

In: Nuclear Physics A, Vol. 618, No. 3, 02.06.1997, p. 317-329.

Research output: Contribution to journalArticle

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