The Equation of State for QCD with 2+1 Flavors of Quarks

Details The Equation of State for QCD with 2+1 Flavors of Quarks The Equation of State for QCD with 2+1 Flavors of Quarks

2005-09-16

arxiv.org/abs/hep-lat/0509053v1

PoS LAT2005:156,2006

Physics

High Energy Physics

High Energy Physics - Lattice

6 pages, 1 figure, 3 tables, contribution to the XXIIIrd International Symposium on Lattice Field Theory, 25-30 July 2005, Tri

Scientific paper

We report results for the interaction measure, pressure and energy density for nonzero temperature QCD with 2+1 flavors of improved staggered quarks. In our simulations we use a Symanzik improved gauge action and the Asqtad $O(a^2)$ improved staggered quark action for lattices with temporal extent $N_t=4$ and 6. The heavy quark mass $m_s$ is fixed at approximately the physical strange quark mass and the two degenerate light quarks have masses $m_{ud} =0.1m_s$ or $0.2m_s$. The calculation of the thermodynamic observables employs the integral method where energy density and pressure are obtained by integration over the interaction measure.

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