The equation of state for QCD with 2+1 flavors of quarks

C. Bernard, T. Burch, C. De Tar, Steven Gottlieb, U. M. Heller, J. E. Hetrick, L. Levkova, F. Maresca, D. B. Renner, R. Sugar, William D Toussaint

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Abstract

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(a2) improved staggered quark action for lattices with temporal extent Nt = 4 and 6. The heavy quark mass ms is fixed at approximately the physical strange quark mass and the two degenerate light quarks have masses mud = 0.1 ms or 0.2ms. The calculation of the thermodynamic observables employs the integral method where energy density and pressure are obtained by integration over the interaction measure.

Original languageEnglish (US)
JournalProceedings of Science
Volume20
Publication statusPublished - Jan 1 2005
Event23rd International Symposium on Lattice Field Theory, LAT 2005 - Dublin, Ireland
Duration: Jul 25 2005Jul 30 2005

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ASJC Scopus subject areas

  • General

Cite this

Bernard, C., Burch, T., De Tar, C., Gottlieb, S., Heller, U. M., Hetrick, J. E., ... Toussaint, W. D. (2005). The equation of state for QCD with 2+1 flavors of quarks. Proceedings of Science, 20.