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Titolo:
AN EFFECTIVE LAGRANGIAN WITH BROKEN SCALE AND CHIRAL-SYMMETRY .3. MESONS AT FINITE-TEMPERATURE
Autore:
CARTER GW; ELLIS PJ; RUDAZ S;
Indirizzi:
UNIV MINNESOTA,SCH PHYS & ASTRON MINNEAPOLIS MN 55455
Titolo Testata:
Nuclear physics. A
fascicolo: 3, volume: 618, anno: 1997,
pagine: 317 - 329
SICI:
0375-9474(1997)618:3<317:AELWBS>2.0.ZU;2-P
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHASE-TRANSITION; NUCLEI; MODEL; GLUODYNAMICS; GLUONIUM; GLUEBALL; DILATON; QCD;
Keywords:
EFFECTIVE LAGRANGIAN; FINITE TEMPERATURE; CHIRAL SYMMETRY RESTORATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
23
Recensione:
Indirizzi per estratti:
Citazione:
G.W. Carter et al., "AN EFFECTIVE LAGRANGIAN WITH BROKEN SCALE AND CHIRAL-SYMMETRY .3. MESONS AT FINITE-TEMPERATURE", Nuclear physics. A, 618(3), 1997, pp. 317-329

Abstract

We investigate the finite temperature behavior of the meson sector ofan 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. (C) 1997 Elsevier Science B.V.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/11/20 alle ore 14:30:48