TY - JOUR
T1 - QCD equation of state with 2+1 flavors of improved staggered quarks
AU - Bernard, C.
AU - Burch, T.
AU - DeTar, C.
AU - Gottlieb, Steven
AU - Levkova, L.
AU - Heller, U. M.
AU - Hetrick, J. E.
AU - Sugar, R.
AU - Toussaint, D.
PY - 2007/5/31
Y1 - 2007/5/31
N2 - 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 0.1ms 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.
AB - 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 0.1ms 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.
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U2 - 10.1103/PhysRevD.75.094505
DO - 10.1103/PhysRevD.75.094505
M3 - Article
AN - SCOPUS:34347348083
SN - 1550-7998
VL - 75
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 9
M1 - 094505
ER -