The leading non-perturbative coefficient in the weak-coupling expansion of hot QCD pressure

Details The leading non-perturbative coefficient in the weak-coupling expansion of hot QCD pressure The leading non-perturbative coefficient in the weak-coupling expansion of hot QCD pressure

2006-05-04

arxiv.org/abs/hep-ph/0605042v2

JHEP 0607 (2006) 026

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages. v2: published version

Scientific paper

10.1088/1126-6708/2006/07/026

Using Numerical Stochastic Perturbation Theory within three-dimensional pure SU(3) gauge theory, we estimate the last unknown renormalization constant that is needed for converting the vacuum energy density of this model from lattice regularization to the MSbar scheme. Making use of a previous non-perturbative lattice measurement of the plaquette expectation value in three dimensions, this allows us to approximate the first non-perturbative coefficient that appears in the weak-coupling expansion of hot QCD pressure.

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