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Electroweak baryogenesis in supersymmetric variants

Authors
Publisher
Elsevier B.V.
Publication Date
Volume
101
Identifiers
DOI: 10.1016/s0920-5632(01)01519-5
Disciplines
  • Physics

Abstract

Abstract We argue that the creation of a baryon asymmetry in the early universe is an intriguing case where several aspects of “Beyond” physics are needed. We then concentrate on baryogenesis in a strong first-order phase transition and discuss that supersymmetric variants of the electroweak theory (MSSM and some version of NMSSM) rather naturally provide the necessary ingredients. The charginos and the stops play a prominent role. We present CP-violating dispersion relations in the chargino sector and show results of a concrete model calculation for the asymmetry production based on quasi-classical Boltzmann transport equations and sphaleron transitions in the hot electroweak phase.

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