Lattice QCD thermodynamic results with improved staggered fermions

Details Lattice QCD thermodynamic results with improved staggered fermions Lattice QCD thermodynamic results with improved staggered fermions

2008-10-02

arxiv.org/abs/0810.0374v1

Physics

High Energy Physics

High Energy Physics - Lattice

Invited talk given at the 3rd International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions, 8

Scientific paper

We present results on the QCD equation of state, obtained with two different improved dynamical staggered fermion actions and almost physical quark masses. Lattice cut-off effect are discussed in detail as results for three different lattice spacings are available now, i.e. results have been obtained on lattices with temporal extent of $N_\tau=4,6$ and 8. Furthermore we discuss the Taylor expansion approach to non-zero baryon chemical potential and present the isentropic equation of state on lines of constant entropy per baryon number.

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