@article{oai:niigata-u.repo.nii.ac.jp:00002275,
 author = {Bazavov, A. and Bhattacharya, T. and Cheng, M. and Christ, N.H. and DeTar, C. and Ejiri, S. and Gottlieb, Steven and Gupta, R. and Heller, U.M. and Huebner, K. and Jung, C. and Karsch, F. and Laermann, E. and Levkova, L. and Miao, C. and Mawhinney, R.D. and Petreczky, P. and Schmidt, C. and Soltz, R.A. and Soeldner, W. and Sugar, R. and Toussaint, D. and Vranas, P.},
 issue = {1},
 journal = {Physical Review D, Physical Review D},
 month = {Jul},
 note = {We calculate the equation of state in 2+1 flavor QCD at finite temperature with physical strange quark mass and almost physical light quark masses using lattices with temporal extent N τ =8 . Calculations have been performed with two different improved staggered fermion actions, the asqtad and p4 actions. Overall, we find good agreement between results obtained with these two O(a 2 ) improved staggered fermion discretization schemes. A comparison with earlier calculations on coarser lattices is performed to quantify systematic errors in current studies of the equation of state. We also present results for observables that are sensitive to deconfining and chiral aspects of the QCD transition on N τ =6 and 8 lattices. We find that deconfinement and chiral symmetry restoration happen in the same narrow temperature interval. In an appendix we present a simple parametrization of the equation of state that can easily be used in hydrodynamic model calculations. In this parametrization we include an estimate of current uncertainties in the lattice calculations which arise from cutoff and quark mass effects.},
 title = {Equation of state and QCD transition at finite temperature},
 volume = {80},
 year = {2009}
}