Electroweak baryogenesis in supersymmetric models
Jun, 199543 pages
Published in:
- Phys.Rev.D 53 (1996) 4578-4597
e-Print:
- hep-ph/9506477 [hep-ph]
Report number:
- UW-PT-95-07
Citations per year
Abstract:
The baryon density which may be produced during the electroweak phase transition in supersymmetric models is computed, taking into account the previously neglected effects of transport, strong and weak anomalous fermion number violation, thermal scattering, and a new method for computing \cp\ violating processes during the transition. We can account for the observed baryon asymmetry, provided new \cp-violating phases are greater than , and some superpartners are light enough to be relevant during the transition, which takes place at a temperature of (50-100) GeV. In one case the light superpartners are the charginos and/or the neutralinos; in another case the top squarks and both Higgs doublets are light. Our calculation is easily extended to the case of a general two Higgs model, where we find sufficient baryogenesis provided the Higgs potential contains a phase of order .- 12.15.Ji
- 12.60.Jv
- electroweak interaction
- critical phenomena
- supersymmetry
- baryon: production
- production: baryon
- baryon: density
- fermion number: violation
- CP: violation
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