Quark number susceptibilities: Lattice QCD versus PNJL model

C. Ratti; S. Rößner; W. Weise

doi:10.1016/j.physletb.2007.03.038

Quark number susceptibilities: Lattice QCD versus PNJL model

C. Ratti
, S. Rößner
, W. Weise

Department of Physics

Research output: Contribution to journal › Article › peer-review

101 Scopus citations

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.

Original language	English
Pages (from-to)	57-60
Number of pages	4
Journal	Physics Letters B
Volume	649
Issue number	1
DOIs	https://doi.org/10.1016/j.physletb.2007.03.038
State	Published - 24 May 2007

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title = "Quark number susceptibilities: Lattice QCD versus PNJL model",

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.",

author = "C. Ratti and S. R{\"o}{\ss}ner and W. Weise",

note = "Funding Information: Work supported in part by BMBF, GSI and INFN. ",

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AU - Rößner, S.

AU - Weise, W.

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PY - 2007/5/24

Y1 - 2007/5/24

N2 - 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.

AB - 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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DO - 10.1016/j.physletb.2007.03.038

M3 - Article

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VL - 649

SP - 57

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JO - Physics Letters B

JF - Physics Letters B

IS - 1

ER -

Quark number susceptibilities: Lattice QCD versus PNJL model

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