Finite-temperature phase structure of lattice QCD with Wilson quark action

Journal Article · Thu Feb 01 00:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.873· OSTI ID:278804

Aoki, S; Ukawa, A; Umemura, T ^[1]

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1. Institute of Physics, University of Tsukuba, Tsukuba, Ibaraki 305 (Japan)

The long-standing issue of the nature of the critical line of lattice QCD with the Wilson quark action at finite temperatures, defined to be the line of vanishing pion screening mass, and its relation to the line of finite-temperature chiral transition is examined. Presented are both analytical and numerical evidence that the critical line forms a cusp at a finite gauge coupling, and that the line of chiral transition runs past the tip of the cusp without touching the critical line. Implications on the continuum limit and the flavor dependence of chiral transition are discussed. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 278804
• Journal Information: Physical Review Letters, Vol. 76, Issue 6; Other Information: PBD: Feb 1996
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
PHASE STUDIES
TEMPERATURE DEPENDENCE
QUANTUM CHROMODYNAMICS
CHIRAL SYMMETRY
COUPLING
LATTICE FIELD THEORY
PIONS
QUARKS