Cosmic $ΔB$ from Lepton Violating Interactions at the Electroweak Phase Transition

Details Cosmic $ΔB$ from Lepton Violating Interactions at the Electroweak Phase Transition Cosmic $ΔB$ from Lepton Violating Interactions at the Electroweak Phase Transition

1992-06-05

arxiv.org/abs/hep-ph/9206212v1

Phys.Lett.B289:73-80,1992

Physics

High Energy Physics

High Energy Physics - Phenomenology

17 pages, DFPD 92/TH/22 SISSA-78/92/AP, 2 figures not available via e-mail

Scientific paper

10.1016/0370-2693(92)91364-F

We propose a new mechanism for late cosmological baryon asymmetry in models with first order electroweak phase transition. Lepton asymmetry arises through the decay of particles produced out of equilbrium in bubble collisions and is converted into baryon asymmetry by sphalerons. Supersymmetric models with explicitly broken R-parity may provide a suiatble framework for the implementation of this mechanism.

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