Quark number susceptibilities: lattice QCD versus PNJL model

Details Quark number susceptibilities: lattice QCD versus PNJL model Quark number susceptibilities: lattice QCD versus PNJL model

2007-01-11

arxiv.org/abs/hep-ph/0701091v1

Phys.Lett.B649:57-60,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 2 figures

Scientific paper

10.1016/j.physletb.2007.03.038

Quark number susceptibilities at finite quark chemical potential are investigated in the framework of the Polyakov-loop-extended Nambu Jona-Lasinio (PNJL) model. A detailed comparison is performed between the available lattice data, extrapolated using a Taylor expansion around vanishing chemical potential, and PNJL results consistently obtained from a Taylor series truncated at the same order. The validity of the Taylor expansion is then examined through a comparison between the full and truncated PNJL model calculations.

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