The pressure of QCD at finite temperatures and chemical potentials

Details The pressure of QCD at finite temperatures and chemical potentials The pressure of QCD at finite temperatures and chemical potentials

2003-05-16

arxiv.org/abs/hep-ph/0305183v3

Phys.Rev.D68:054017,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

35 pages, 6 figures; text revised, one figure replaced

Scientific paper

10.1103/PhysRevD.68.054017

The perturbative expansion of the pressure of hot QCD is computed here to order g^6ln(g) in the presence of finite quark chemical potentials. In this process all two- and three-loop one-particle irreducible vacuum diagrams of the theory are evaluated at arbitrary T and mu, and these results are then used to analytically verify the outcome of an old order g^4 calculation of Freedman and McLerran for the zero-temperature pressure. The results for the pressure and the different quark number susceptibilities at high T are compared with recent lattice simulations showing excellent agreement especially for the chemical potential dependent part of the pressure.

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