✦ LIBER ✦
An effective lagrangian with broken scale and chiral symmetry III. Mesons at finite temperature
✍ Scribed by G.W. Carter; P.J. Ellis; S. Rudaz
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 579 KB
- Volume
- 618
- Category
- Article
- ISSN
- 0375-9474
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✦ Synopsis
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. @ 1997 Elsevier Science B.V.