Electroweak Baryogenesis from Late Neutrino Masses

Abstract

Electroweak Baryogenesis, given a first order phase transition, does not work in the standard model because the quark Yukawa matrices are too hierarchical. On the other hand, the neutrino mass matrix is apparently not hierarchical. In models with neutrino mass generation at low scales, the neutrino Yukawa couplings lead to large CP-violation in the reflection probability of heavy leptons by the expanding Higgs bubble wall, and can generate the observed baryon asymmetry of the universe. The mechanism predicts new vector-like leptons below the TeV scale and sizable mu -> e processes.

5 pages, 2 figures, references added

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Cited by in corpus (13)

• Electroweak-Scale Resonant Leptogenesis
• Dark Matter as the Trigger of Strong Electroweak Phase Transition
• High Scale Electroweak Phase Transition: Baryogenesis & Symmetry Non-Restoration
• Baryogenesis at a Lepton-Number-Breaking Phase Transition
• Mini Z' Burst from Relic Supernova Neutrinos and Late Neutrino Masses
• Light Neutrinos from a Mini-Seesaw Mechanism in Warped Space
• Probing Late Neutrino Mass Properties with Supernova Neutrinos
• Constraining Modular Inflation in the MSSM from Giant Q-Ball Formation
• Split Fermions Baryogenesis from the Kobayashi-Maskawa Phase
• Cosmic matter from dark electroweak phase transition with neutrino mass generation
• Leptogenesis at the Electroweak Scale
• $\nu$ Electroweak Baryogenesis
• Pure leptonic proposal to $W^{+}{W}^{-}$ excess and neutrino mass generation