Pressure of Hot QCD at LargeNf

2002/09/30 by Guy D. Moore, Guy D Moore · 7 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1088/1126-6708/2002/10/055

published as JHEP 0210 (2002) 055 · 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

openalex publication_date 2002/10/24 · arxiv created 2003/01/17 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/04

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(T⁸/Λ⁴_Landau) and remain negligible long after the perturbative series (in g² 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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• Hard-thermal-loop quasiparticle models of deconfined QCD at finite chemical potential
• Thermodynamics of large-NfQCD at finite chemical potential
• On the apparent convergence of perturbative QCD at high temperature
• Advances in perturbative thermal field theory