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arXiv · 1011.4229

N_f=2+1 flavour equation of state

Szabolcs Borsanyi·Gergely Endrodi·Zoltan Fodor·Antal Jakovac·Sandor D. Katz·Stefan Krieg·Claudia Ratti·Kalman K. Szabo
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Abstract

We conclude our investigation on the QCD equation of state (EoS) with 2+1 staggered flavors and one-link stout improvement. We extend our previous study [JHEP 0601:089 (2006)] by choosing even finer lattices. These new results [for details see arXiv:1007.2580] support our earlier findings. Lattices with N_t=6,8 and 10 are used, and the continuum limit is approached by checking the results at N_t=12. A Symanzik improved gauge and a stout-link improved staggered fermion action is taken; the light and strange quark masses are set to their physical values. Various observables are calculated in the temperature (T) interval of 100 to 1000~MeV. We compare our data to the equation of state obtained by the "hotQCD" collaboration.

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Szabolcs Borsanyi, Gergely Endrodi, Zoltan Fodor, Antal Jakovac, Sandor D. Katz, Stefan Krieg, Claudia Ratti, Kalman K. Szabo. 2010-11-18. N_f=2+1 flavour equation of state. https://arxiv.org/abs/1011.4229

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