QCD Thermodynamics with 2 and 3 Quark Flavors
arXiv:hep-lat/0010027 · doi:10.1142/9789812799913_0020
Abstract
We discuss the flavor dependence of the pressure and critical temperature calculated in QCD with 2, 2+1 and 3 flavors using improved gauge and staggered fermion actions on lattices with temporal extent Nt=4. For T > 2 Tc we find that bulk thermodynamics of QCD with 2 light and a heavier strange quark is well described by 3-flavor QCD while the transition temperature is closer to that of 2-flavor QCD. Furthermore, we present evidence that the chiral critical point of 3-flavor QCD, i.e. the second order endpoint of the line of first order chiral phase transitions, belongs to the universality class of the 3d Ising model.
arXiv comment6 pages, LaTeX2e File, 7 EPS-figures, presented at SEWM 2000, Marseille, June 13-17th, 2000