Chiral-symmetry breaking in lattice QCD with two and four fermion flavors
Journal Article
·
· Phys. Rev. D; (United States)
We study the thermodynamics of lattice quantum chromodynamics for two and four flavors of staggered fermions at temperature T = 1/4a, where a is the lattice spacing. For four flavors with mass below 0.05/a we find evidence for a first-order chiral-symmetry-breaking phase transition. For two flavors there is an increasingly rapid crossover as the mass is lowered, but we find no conclusive evidence of a first-order transition for quark masses down to 0.0125/a. A rough estimate is made of the zero-mass transition temperature for two flavors of quarks.
- Research Organization:
- Department of Physics, Indiana University, Bloomington, Indiana 47401
- OSTI ID:
- 6140744
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 35:12; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645204* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR MODEL
FUNCTIONS
LATTICE FIELD THEORY
LIE GROUPS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
PARTITION FUNCTIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
THERMODYNAMIC PROPERTIES
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COMPOSITE MODELS
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
FLAVOR MODEL
FUNCTIONS
LATTICE FIELD THEORY
LIE GROUPS
MASS
MATHEMATICAL MODELS
PARTICLE MODELS
PARTITION FUNCTIONS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
POSTULATED PARTICLES
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
QUARKS
SU GROUPS
SU-3 GROUPS
SYMMETRY
SYMMETRY BREAKING
SYMMETRY GROUPS
THERMODYNAMIC PROPERTIES