A field theoretical model for QCD thermodynamics

C. Ratti; S. Röner; W. Weise

doi:10.1088/0954-3899/34/8/S64

A field theoretical model for QCD thermodynamics

C. Ratti
, S. Röner
, W. Weise

Department of Physics

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

1 Scopus citations

Abstract

The PNJL model is used to study the thermodynamics of N_f ≤ 2 quark flavours interacting through chiral four-point couplings and propagating in a homogeneous Polyakov loop background. The input is fixed exclusively by selected pure-gauge lattice QCD results and by pion properties in vacuum. We present successful comparisons with lattice QCD thermodynamics expanded to finite chemical potential μ_q. Quark number susceptibilities at finite quark chemical potential are investigated. The validity of the Taylor expansion is then examined through a comparison between the full and truncated PNJL model calculations.

Original language	English
Article number	S64
Pages (from-to)	S647-S650
Journal	Journal of Physics G: Nuclear and Particle Physics
Volume	34
Issue number	8
DOIs	https://doi.org/10.1088/0954-3899/34/8/S64
State	Published - 1 Aug 2007

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AB - The PNJL model is used to study the thermodynamics of Nf ≤ 2 quark flavours interacting through chiral four-point couplings and propagating in a homogeneous Polyakov loop background. The input is fixed exclusively by selected pure-gauge lattice QCD results and by pion properties in vacuum. We present successful comparisons with lattice QCD thermodynamics expanded to finite chemical potential μq. Quark number susceptibilities at finite quark chemical potential are investigated. The validity of the Taylor expansion is then examined through a comparison between the full and truncated PNJL model calculations.

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A field theoretical model for QCD thermodynamics

Abstract

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