Finite-Temperature Phase Structure of Lattice QCD with Wilson Quark Action

Abstract

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 tansition is examined. Analytical and numerical evidence are presented that the critical line forms a cusp at a finite gauge coupling, and 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.

arXiv comment13 pages(4 figures), latex (epsf style-file needed), one sentence in abstract missed in transmission supplied and a few minor modifications in the text made

References in corpus (2)

• QCD thermodynamics with two flavors of Wilson quarks at N_t=6
• Quantum chromodynamics with various number of flavors

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