Finite-temperature chiral transitions in QCD with the Wilson quark action

Abstract

We investigate the finite-temperature phase structure and the scaling of the chiral condensate in lattice QCD with two degenerate light quarks, using a renormalization group improved gauge action and the Wilson quark action. We obtain a phase diagram which is consistent with that from the parity-flavor breaking scenario. The scaling relation for the chiral condensate assuming the critical exponents and the scaling function of the three dimensional O(4) model is remarkably satisfied for a wide range of parameters. This indicates that the chiral transition in two flavor QCD is of second order in the continuum limit.

LaTeX, 3 pages, 4 EPS figures, Talk presented at LATTICE97 (finite temperature)

References in corpus (3)

• Scaling of Chiral Order Parameter in Two-Flavor QCD
• Finite-Temperature Phase Structure of Lattice QCD with Wilson Quark Action
• Phase Transitions at Finite Temperature and Dimensional Reduction for Fermions and Bosons

Cited by in corpus (6)

• The Status of Lattice QCD at Finite Temperature
• Testing improved actions for dynamical Kogut-Susskind quarks
• Phase structure and critical temperature of two-flavor QCD with a renormalization group improved gauge action and clover improved Wilson quark action
• Equation of state in finite-temperature QCD with two flavors of improved Wilson quarks
• Critical Behavior in Nt = 4 Staggered Fermion Thermodynamics
• Critical behaviour and scaling functions of the three-dimensional O(6) model