Baryogenesis through leptogenesis

1999/11/30 by Riccardo Barbieri, Paolo Creminelli, Alessandro Strumia +3 · 17 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0550-3213(00)00011-0

published as Nucl.Phys.B575:61-77,2000 · 14 pages. v4: revised using the corrected Boltzmann equations of hep-ph/0310123

openalex publication_date 2000/05/01 · arxiv created 2003/10/22 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Baryogenesis by heavy-neutrino decay and sphaleron reprocessing of both baryon and lepton number is reconsidered, paying special attention to the flavour structure of the general evolution equations and developing an approximate but sufficiently accurate analytic solution to the prototype evolution equation. Two different models of neutrino masses are examined, based on an Abelian U(1) or a non-Abelian U(2) family symmetry. We show that a consistent picture of baryogenesis can emerge in both cases, although with significant differences.

Citations

• Neutrino masses from U(1) symmetries and the Super-Kamiokande data
• CP asymmetry in Majorana neutrino decays
• On the baryon, lepton-flavour and right-handed electron asymmetries of the universe
• On anomalous electroweak baryon-number non-conservation in the early universe

Cited by

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• Flavour matters in leptogenesis
• Anatomy ofFD-term hybrid inflation
• Quark–lepton unification and eight-fold ambiguity in the left–right symmetric seesaw mechanism
• Leptonic CP asymmetry and Light flavored scalar
• Electroweak-scale resonant leptogenesis
• Axino dark matter in brane world cosmology
• Neutrino oscillations: status, prospects and opportunities at a neutrino factory
• Lepton flavor violating decays as probes of neutrino mass spectra and heavy Majorana neutrino masses
• Building the full Pontecorvo-Maki-Nakagawa-Sakata matrix from six independent Majorana-type phases
• Cosmic microwave background, matter–antimatter asymmetry and neutrino masses
• Leptogenesis and rescattering in supersymmetric models
• The little review on leptogenesis
• Leptogenesis in the Universe
• Theory of neutrinos: a white paper
• Neutrino masses and leptogenesis in type I and type II seesaw models
• Hybrid textures in minimal seesaw mass matrices