arxiv: hep-ph/9407238 · v1 · pith:6CIJB553new · submitted 1994-07-06 · ✦ hep-ph

Loop corrections to the sphaleron transition rate in the minimal standard model

Dmitri Diakonov , Maxim Polyakov , Pavel Pobylitsa , Peter Sieber , Joerg Schaldach , Klaus Goeke This is my paper

classification ✦ hep-ph

keywords massminimalmodelratestandardbaryonhiggsloop

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The baryon number dissipation rate due to sphaleron transitions at high temperatures in the minimal standard model is evaluated. We find that this rate can be considerably suppressed by one loop contributions of bosonic and fermionic fluctuations which are particularly important for a small mass of the Higgs boson and a large top quark mass. Fixing the latter to its recently stated value of 174 GeV the complete erasure of the baryon asymmetry is prevented within the framework of the minimal standard model if the Higgs mass is less than about 66 GeV.

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Loop corrections to the sphaleron transition rate in the minimal standard model

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