Comment on and Erratum to "Pressure of Hot QCD at Large N_f"

Details Comment on and Erratum to "Pressure of Hot QCD at Large N_f" Comment on and Erratum to "Pressure of Hot QCD at Large N_f"

2003-01-09

arxiv.org/abs/hep-ph/0301057v2

JHEP 0301 (2003) 037

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 3 figures, JHEP3; v2: version accepted for publication in JHEP (title changed, 1 footnote added, 1 reference updated,

Scientific paper

10.1088/1126-6708/2003/01/037

We repeat and correct the recent calculation of the thermodynamic potential of hot QCD in the limit of large number N_f of fermions. The new result for the thermal pressure turns out to agree significantly better with results obtained from perturbation theory at small coupling. For large coupling, a nonmonotonic behaviour is reproduced, but the pressure of the strongly coupled theory does not exceed the free pressure as long as the Landau pole ambiguity remains negligible numerically.

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