We calculate the transition temperature in 2 and 3-flavor QCD using improved gauge and staggered fermion actions on lattices with temporal extent Nt=4. We find Tc=173(8)MeV and 154(8)MeV for nf=2 and 3, respectively. In the case of 3-flavor QCD we present evidence that the chiral critical point, 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.
@article{arxiv.hep-lat/0010040,
title = {Flavor and Quark Mass Dependence of QCD Thermodynamics},
author = {F. Karsch and E. Laermann and A. Peikert and Ch. Schmidt and S. Stickan},
journal= {arXiv preprint arXiv:hep-lat/0010040},
year = {2009}
}
Comments
Talk given at Lattice 2000 (Finite Temperature), 4 pages, 6 EPS-figures