Pressure of Hot QCD at Large N_f
High Energy Physics - Phenomenology
2009-11-07 v2
Abstract
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.
Cite
@article{arxiv.hep-ph/0209190,
title = {Pressure of Hot QCD at Large N_f},
author = {Guy D. Moore},
journal= {arXiv preprint arXiv:hep-ph/0209190},
year = {2009}
}
Comments
16 pages including 4 figures. Short enough for you to read. Numerical results corrected after an error was found by Andreas Ipp and Anton Rebhan