Predictions for SUSY Particle Masses from Electroweak Baryogenesis

Details Predictions for SUSY Particle Masses from Electroweak Baryogenesis Predictions for SUSY Particle Masses from Electroweak Baryogenesis

1998-10-06

arxiv.org/abs/hep-ph/9810267v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

5pp, 12 figures, uses psfig and ltwol2e2.sty (included); invited talk presented at ICHEP `98, Vancouver

Scientific paper

In collaboration with G.D. Moore, the electroweak phase transition in the minimal supersymmetric standard model is studied using the two-loop effective potential. We make a comprehensive search of the MSSM parameter space consistent with electroweak baryogenesis, taking into account various factors: the latest experimental constraints on the Higgs boson mass and the rho parameter, the possibility of significant squark and Higgs boson mixing, and the exact rate of bubble nucleation and sphaleron transitions. Most of the baryogenesis-allowed regions of parameter space will be probed by LEP 200, hence the Higgs boson is likely to be discovered soon if the baryon asymmetry was indeed created during the electroweak phase transition.

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