QCD Thermodynamics at Intermediate Coupling
arXiv:1012.3377 · doi:10.1063/1.3575078
Abstract
The weak-coupling expansion of the QCD free energy is known to order g_s^6log{g_s}, however, the resulting series is poorly convergent at phenomenologically relevant temperatures. In this proceedings, I discuss hard-thermal-loop perturbation theory (HTLpt) which is a gauge-invariant reorganization of the perturbative expansion for gauge theories. I review a recent NNLO HTLpt calculation of QCD thermodynamic functions. I show that the NNLO HTLpt results are consistent with lattice data down to temperatures T~2T_c.
arXiv comment3 pages, 2 figures; talk given at the conference "Quark Confinement and the Hadron Spectrum IX", August 30 - September 3, 2010, Madrid, Spain; to appear in the AIP proceedings
References in corpus (6)
- The QCD equation of state with dynamical quarks
- The pressure of hot QCD up to g^6 ln(1/g)
- NNLO hard-thermal-loop thermodynamics for QCD
- Thermodynamics of the high-temperature quark-gluon plasma
- Four-loop pressure of massless O(N) scalar field theory
- A pQCD-based description of heavy and light flavor jet quenching