On Preserving a B+L Asymmetry Produced in the Early Universe

Details On Preserving a B+L Asymmetry Produced in the Early Universe On Preserving a B+L Asymmetry Produced in the Early Universe

1994-03-09

arxiv.org/abs/hep-ph/9403259v1

Phys.Lett.B328:354-359,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, LaTeX, UMN-TH-1240, CfPA-TH-94-13, LBL-35275

Scientific paper

10.1016/0370-2693(94)91490-7

One of the most efficient mechanisms for producing the baryon asymmetry of the Universe is the decay of scalar condensates in a SUSY GUT as was first suggested by Affleck and Dine. We show that given a large enough asymmetry, the baryon number will be preserved down to low temperatures even if B - L = 0, because the baryon number carrying scalars form bose condensates that give the W a mass. We derive the conditions on the condensate needed to suppress electroweak sphaleron interactions which would otherwise drive the baryon asymmetry to zero when B - L = 0.

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