The Thermal Beta-Function in Yang-Mills Theory

Details The Thermal Beta-Function in Yang-Mills Theory The Thermal Beta-Function in Yang-Mills Theory

1994-08-09

arxiv.org/abs/hep-ph/9408254v1

Phys.Rev. D51 (1995) 774-780

Physics

High Energy Physics

High Energy Physics - Phenomenology

16pp,latex + epsf.sty, Nordita-94/36 P

Scientific paper

10.1103/PhysRevD.51.774

Previous calculations of the thermal beta-function in a hot Yang--Mills gas at the one--loop level have exposed problems with the gauge dependence and with the sign, which is opposite to what one would expect for asymptotic freedom. We show that inclusion of higher--loop effects through a static Braaten--Pisarski resummation is necessary to consistently obtain the leading term, but alters the results only quantitatively. The sign, in particular, remains the same. We also explore, by a crude parameterization, the effects a (non--perturbative) magnetic mass may have on these results.

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