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Sphaleron relaxation temperatures

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arxiv hep-ph/0304263 v4 pith:RACZG73I submitted 2003-04-28 hep-ph

Sphaleron relaxation temperatures

classification hep-ph
keywords sphalerontemperaturesratesrelaxationweakcalculatedcasecloser
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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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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