Hard Thermal Loops and the Sphaleron Rate on the Lattice

Details Hard Thermal Loops and the Sphaleron Rate on the Lattice Hard Thermal Loops and the Sphaleron Rate on the Lattice

1999-09-08

arxiv.org/abs/hep-lat/9909054v1

Nucl.Phys.Proc.Suppl. 83 (2000) 583-585

Physics

High Energy Physics

High Energy Physics - Lattice

3 pages

Scientific paper

We measure the sphaleron rate (topological susceptibility) of hot SU(2) gauge
theory, using a lattice implementation of the hard thermal loop (HTL) effective
action. The HTL degrees of freedom are implemented by an expansion in spherical
harmonics and truncation. Our results for the sphaleron rate agree with the
parametric prediction of Arnold, Son and Yaffe: Gamma ~ \alpha^5 T^4.

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