Perturbative QCD at nonzero chemical potential: Comparison with the large-Nflimit and apparent convergence

2003/11/30 by Andreas Ipp, A. Ipp, Anton Rebhan +3 · 3 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.69.077901

published as Phys.Rev. D69 (2004) 077901 · REVTEX4, 4 pages, 3 color figures. v2: fig. 3 now includes also lattice data for two-flavor QCD at nonzero chemical potential

arxiv created 2004/02/10 · openalex publication_date 2004/04/28 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

The perturbative three-loop result for the thermodynamic potential of QCD at finite temperature and chemical potential as obtained in the framework of dimensional reduction is compared with the exact result in the limit of large flavor number. The apparent convergence of the former as well as possibilities for optimization are investigated. The corresponding optimized results for full QCD are given for the case of two massless quark flavors.

Citations

• Pressure and nonlinear susceptibilities in QCD at finite chemical potentials
• Pressure of Hot QCD at LargeNf

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• Quark number susceptibilities from resummed perturbation theory