Published November 1, 2002
| Version v1
Journal article
The SU(2) and SU(3) chiral phase transitions within chiral perturbation theory
Creators
- 1. INFN, Sezione di Firenze (Italy)
- 2. Dipartimento di Fisica, Universita' degli Studi, Florence (Italy)
- 3. Departamento de Fisica Teorica II, Universidad Complutense de Madrid, 28040 Madrid (Spain)
Description
The SU(2) and SU(3) chiral phase transitions in a gas made of pions, kaons, and etas are studied within the framework of chiral perturbation theory. We describe the temperature dependence of the quark condensates by using the meson meson scattering phase shifts in a second order virial expansion. In particular, the SU(3) formalism yields a somewhat lower melting temperature for the nonstrange condensates than within SU(2), and also predicts that the strange condensate melting is slower than that of the nonstrange, due to the different strange and nonstrange quark masses
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.66.096007;
- arXiv
- arXiv:hep-ph/0202265v2;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 66
- Journal Issue
- 9
- Journal Page Range
- p. 096007-096007.5
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 35073623
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- CHIRAL SYMMETRY; KAONS; MESON-MESON INTERACTIONS; PERTURBATION THEORY; PHASE SHIFT; PIONS; QUANTUM FIELD THEORY; QUARK CONDENSATION; QUARKS; REST MASS; SCATTERING; SU-2 GROUPS; SU-3 GROUPS; TEMPERATURE DEPENDENCE
- Descriptors DEC
- BOSONS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; HADRON-HADRON INTERACTIONS; HADRONS; INTERACTIONS; LIE GROUPS; MASS; MESONS; PARTICLE INTERACTIONS; PSEUDOSCALAR MESONS; STRANGE MESONS; STRANGE PARTICLES; SU GROUPS; SYMMETRY; SYMMETRY GROUPS
Optional Information
- Notes
- (c) 2002 The American Physical Society