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arXiv · hep-ph/0701091

Quark number susceptibilities: lattice QCD versus PNJL model

Claudia Ratti·Simon Roessner·Wolfram Weise
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Abstract

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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Claudia Ratti, Simon Roessner, Wolfram Weise. 2007-01-11. Quark number susceptibilities: lattice QCD versus PNJL model. https://doi.org/10.1016/j.physletb.2007.03.038

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