Pressure of Hot QCD at Large N_f

Details Pressure of Hot QCD at Large N_f Pressure of Hot QCD at Large N_f

2002-09-17

arxiv.org/abs/hep-ph/0209190v2

JHEP 0210 (2002) 055

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages including 4 figures. Short enough for you to read. Numerical results corrected after an error was found by Andreas Ip

Scientific paper

10.1088/1126-6708/2002/10/055

We compute the pressure and entropy of hot QCD in the limit of large number of fermions, N_f >> N_c ~ 1, to next to leading order in N_f. At this order the calculation can be done exactly, up to ambiguities due to the presence of a Landau pole in the theory; the ambiguities are O(T^8/\Lambda^4_{Landau}) and remain negligible long after the perturbative series (in g^2 N_f) has broken down. Our results can be used to test several proposed resummation schemes for the pressure of full QCD.

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