Chiral transition and deconfinement transition in QCD with the highly improved staggered quark (HISQ) action

Details Chiral transition and deconfinement transition in QCD with the highly improved staggered quark (HISQ) action Chiral transition and deconfinement transition in QCD with the highly improved staggered quark (HISQ) action

2010-09-24

arxiv.org/abs/1009.4914v1

Physics

High Energy Physics

High Energy Physics - Lattice

Talk presented by P. Petreczky at workshop Dense Matter 2010, April 6-9, Stellenbosch, South Africa, to be published in the pr

Scientific paper

We report preliminary results on the chiral and deconfinement aspects of the QCD transition at finite temperature using the Highly Improved Staggered Quark (HISQ) action on lattices with temporal extent of N_{\tau}=6 and 8. The chiral aspects of the transition are studied in terms of quark condensates and the disconnected chiral susceptibility. We study the deconfinement transition in terms of the strange quark number susceptibility and the renormalized Polyakov loop. We made continuum estimates for some quantities and find reasonably good agreement between our results and the recent continuum extrapolated results obtained with the stout staggered quark action.

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