Precise determination of Tc in QCD from scaling -: art. no. 034507

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作者
Gupta, S [1 ]
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[1] Tata Inst Fundamental Res, Dept Theoret Phys, Mumbai 400005, India
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P1 [天文学];
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0704 ;
摘要
Existing lattice data on the QCD phase transition are analyzed in renormalized perturbation theory. In quenched QCD it is found that T-c scales for lattices with only three time slices, and that T-c/Lambda((MM)) over bar = 1.15 +/- 0.05. A preliminary estimate in QCD with two flavors of dynamical quarks shows that this ratio depends on the quark mass. For realistic quark masses we estimate T-c/<<Lambda>((MS))over bar>= 0.49 +/-0.02. We also investigate the equation of state in quenched QCD at 1-loop order in renormalized perturbation theory.
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