Finite Temperature QCD with Wilson Quarks: A Study with a Renormalization Group Improved Gauge Action
Y. Iwasaki, K. Kanaya, S. Kaya, S. Sakai, T. Yoshie
Abstract
Finite temperature transition in lattice QCD with degenerate Wilson quarks is investigated on an Nt=4 lattice, using a renormalization group improved gauge action. We find the following for the NF=2 case: 1) The transition is smooth for a wide range of the quark mass. 2) The chiral transition is continuous. 3) The chiral condensation well satisfies a scaling relation with the critical exponents of the 3 dimensional O(4) spin model. For NF=3, we find that the chiral transition is of first order.
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