Transition temperature in QCD with physical light and strange quark masses

Details Transition temperature in QCD with physical light and strange quark masses Transition temperature in QCD with physical light and strange quark masses

2007-01-24

arxiv.org/abs/hep-ph/0701210v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 4 figures, to appear in the proceedings of the 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Co

Scientific paper

10.1088/0954-3899/34/8/S59

We present results from a calculation of the transition temperature in QCD with two light and one heavier (strange) quark mass on lattices with temporal extent N_t =4 and 6. Calculations with improved staggered fermions have been performed with a strange quark mass fixed close to its physical value and for various light to strange quark mass ratios that correspond to light pseudo-scalar masses in the range (150-500) MeV. From a combined extrapolation to the chiral (m_l -> 0) and continuum (aT -> 0) limits we obtain for the transition temperature at the physical point T_c = 192(7)(4) MeV. We also present first results from an ongoing calculation of the QCD equation of state with almost realistic light and strange quark masses.

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