Sphaleron relaxation temperatures
High Energy Physics - Phenomenology
2011-07-19 v4
Abstract
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.
Cite
@article{arxiv.hep-ph/0304263,
title = {Sphaleron relaxation temperatures},
author = {Luis Bento},
journal= {arXiv preprint arXiv:hep-ph/0304263},
year = {2011}
}
Comments
15 pages, iopart.cls, published in JCAP 11(2003)002