Perturbative QCD at non-zero chemical potential: Comparison with the large-Nf limit and apparent convergence

Details Perturbative QCD at non-zero chemical potential: Comparison with the large-Nf limit and apparent convergence Perturbative QCD at non-zero chemical potential: Comparison with the large-Nf limit and apparent convergence

2003-11-14

arxiv.org/abs/hep-ph/0311200v2

Phys.Rev. D69 (2004) 077901

Physics

High Energy Physics

High Energy Physics - Phenomenology

REVTEX4, 4 pages, 3 color figures. v2: fig. 3 now includes also lattice data for two-flavor QCD at nonzero chemical potential

Scientific paper

10.1103/PhysRevD.69.077901

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. Corresponding optimized results for full QCD are given for the case of two massless quark flavors.

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