Sphaleron relaxation temperatures

Details Sphaleron relaxation temperatures Sphaleron relaxation temperatures

2003-04-28

arxiv.org/abs/hep-ph/0304263v4

JCAP 0311:002,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, iopart.cls, published in JCAP 11(2003)002

Scientific paper

10.1088/1475-7516/2003/11/002

The transition of sphaleron processes from non-equilibrium to thermal equilibrium in the early Universe is examined in detail. The relations between the damping rates and frequencies of the weak and QCD sphaleron degeneracy parameters are determined in general form and the respective relaxation temperatures are calculated in specific scenarios. It is pointed out that the gauge coupling constants running with energy produces strong and weak sphaleron rates closer to each other at very high temperatures and makes them larger in supersymmetric models than in the standard model case.

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