Spontaneous breaking of flavor symmetry and parity in lattice QCD with Wilson fermions

Journal Article · Fri May 15 04:00:00 EDT 1992 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.45.3845· OSTI ID:7035637

Aoki, S ^[1]; Gocksch, A ^[2]

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1. Institute of Physics, University of Tsukuba, Ibaraki 305 (Japan)
2. Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)

By adding a symmetry-breaking source term of the form {ital Hi}{bar {psi}}{gamma}{sub 5}{tau}{sub 3}{psi} to the Wilson fermion action for two degenerate flavors of quarks, we provide evidence for the existence of a phase at large values of the hopping parameter {kappa} in which both parity {ital and} flavor symmetries are spontaneously broken and which is separate from the high-temperature'' phase. This is done by means of numerical simulations of lattice QCD employing the hybrid Monte Carlo algorithm.

• DOE Contract Number: AC02-76CH00016
• OSTI ID: 7035637
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 45:10; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

662230* -- Quantum Chromodynamics-- (1992-)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRAL SYMMETRY
COMPOSITE MODELS
FERMIONS
FIELD THEORIES
FLAVOR MODEL
LATTICE FIELD THEORY
MATHEMATICAL MODELS
MONTE CARLO METHOD
NUMERICAL SOLUTION
PARITY
PARTICLE MODELS
PARTICLE PROPERTIES
PHASE TRANSFORMATIONS
QUANTUM CHROMODYNAMICS
QUANTUM FIELD THEORY
QUARK MODEL
SYMMETRY
SYMMETRY BREAKING
WILSON LOOP