QCD Thermodynamics with 2 and 3 Quark Flavors

Details QCD Thermodynamics with 2 and 3 Quark Flavors QCD Thermodynamics with 2 and 3 Quark Flavors

2000-10-17

arxiv.org/abs/hep-lat/0010027v1

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, LaTeX2e File, 7 EPS-figures, presented at SEWM 2000, Marseille, June 13-17th, 2000

Scientific paper

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.

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