QCD Thermodynamics at Intermediate Coupling

Journal Article · Mon May 23 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3575078· OSTI ID:21516927

Nan, Su ^[1]

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1. Frankfurt Institute for Advanced Studies, Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main (Germany)

The weak-coupling expansion of the QCD free energy is known to order g{sub s}{sup 6} log g{sub 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 {approx}2T{sub c}.

• OSTI ID: 21516927
• Journal Information: AIP Conference Proceedings, Vol. 1343, Issue 1; Conference: QCHS 9: 9. international conference on quark confinement and the hadron spectrum, Madrid (Spain), 30 Aug - 3 Sep 2010; Other Information: DOI: 10.1063/1.3575078; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
EXPANSION
FREE ENERGY
GAUGE INVARIANCE
INTERMEDIATE COUPLING
PERTURBATION THEORY
PROCEEDINGS
QUANTUM CHROMODYNAMICS
RENORMALIZATION
THERMODYNAMICS
COUPLING
DOCUMENT TYPES
ENERGY
FIELD THEORIES
INVARIANCE PRINCIPLES
PHYSICAL PROPERTIES
QUANTUM FIELD THEORY
THERMODYNAMIC PROPERTIES