QCD Thermodynamics with 2 and 3 Quark Flavors
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 Nτ = 4. For T ≳ 2Tc 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.
- Publication:
-
Strong and Electroweak Matter 2000
- Pub Date:
- July 2001
- DOI:
- 10.1142/9789812799913_0020
- arXiv:
- arXiv:hep-lat/0010027
- Bibcode:
- 2001sem..conf..180K
- Keywords:
-
- High Energy Physics - Lattice
- E-Print:
- 6 pages, LaTeX2e File, 7 EPS-figures, presented at SEWM 2000, Marseille, June 13-17th, 2000