Nonperturbative screening of the Landau pole

Details Nonperturbative screening of the Landau pole Nonperturbative screening of the Landau pole

2007-04-19

arxiv.org/abs/0704.2526v1

Phys.Rev.D77:065022,2008

Physics

High Energy Physics

High Energy Physics - Theory

11 pages, 3 figures

Scientific paper

10.1103/PhysRevD.77.065022

Based on the trace anomaly for the energy-momentum tensor, an effective theory for the thermodynamics of the deconfining phase, and by assuming the asymptotic behavior to be determined by one-loop perturbation theory we compute the nonperturbative beta function for the fundamental coupling $g$ in SU(2) and SU(3) Yang-Mills theory. With increasing temperature we observe a very rapid approach to the perturbative running. The Landau pole is nonperturbatively screened.

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