Published March 1, 1990
| Version v1
Journal article
Chiral phase transitions in QCD for finite temperature and density
- 1. Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Firenze, I-50125 Firenze, Italy (Italy)
- 2. Dipartimento di Fisica, Universita di Firenze, I-50125 Firenze, Italy (Italy)
- 3. Departement de Physique de Theorique, Universite de Geneve CH-1211 Geneve 4, Switzerland (Switzerland)
- 4. Istituto Nazionale di Fisica Nucleare (INFN), Sezione di Lecce, I-73100 Leece, Italy (Italy)
- 5. Dipartimento di Fisica, Universita di Lecce, I-73100 Lecce, Italy (Italy)
- 6. Departement de Physique de Theorique, Universite de Geneve, CH-1211 Geneve 4, Switzerland (Switzerland)
- 7. Dipartimento di Fisica, Universita di Pisa, I-56100 Pisa, Italy (Italy)
Description
We study the diagram for the chiral phases of QCD on the plane of temperature and chemical potential. The calculation is based on the extension of a composite-operator formalism already employed for zero temperature and density. We find that, moving along the critical line for increasing chemical potential, one encounters a point separating second-order and first-order chiral phase transitions. The overall phase diagram is found to qualitatively reproduce the pattern for the Gross-Neveu model. Our study suggests the occurrence of metastable phases
Additional details
Publishing Information
- Journal Title
- Physical Review, D
- Journal Volume
- 41
- Journal Issue
- 5
- Series
- Phys. Rev., D.
- Journal Page Range
- 1610-1619
- ISSN
- 0556-2821
- CODEN
- PRVDA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 21054809
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CHIRAL SYMMETRY; COUPLING CONSTANTS; FERMIONS; FEYNMAN DIAGRAM; PERTURBATION THEORY; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; PROPAGATOR; QUANTUM CHROMODYNAMICS; SELF-ENERGY; SYMMETRY BREAKING; TEMPERATURE DEPENDENCE
- Descriptors DEC
- DIAGRAMS; ENERGY; FIELD THEORIES; INFORMATION; QUANTUM FIELD THEORY; SYMMETRY