The QCD equation of state with asqtad staggered fermions
C. Bernard, T. Burch, C. DeTar, Steven Gottlieb, L. Levkova, U.M., Heller, J.E. Hetrick, D.B. Renner, D. Toussaint, R. Sugar
TL;DR
This paper presents results on the QCD equation of state using improved lattice actions at finite temperature and discusses extensions to non-zero chemical potential, including systematic error estimates.
Contribution
It provides new lattice QCD calculations of the EOS with improved actions at different lattice spacings and explores the extension to finite chemical potential.
Findings
EOS results at $N_t=4$ and 6 lattice spacings
Finite step-size systematic error estimates
Preliminary results on non-zero chemical potential
Abstract
We report on our result for the equation of state (EOS) with a Symanzik improved gauge action and the asqtad improved staggered fermion action at and 6. In our dynamical simulations with 2+1 flavors we use the inexact R algorithm and here we estimate the finite step-size systematic error on the EOS. Finally we discuss the non-zero chemical potential extension of the EOS and give some preliminary results.
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Taxonomy
TopicsHigh-Energy Particle Collisions Research · Quantum Chromodynamics and Particle Interactions · Particle physics theoretical and experimental studies