Discriminating Majorana neutrino phases in the light of lepton flavor violation and leptogenesis in type I+II seesaw models
| Autor: | Rupam Kalita, Debasish Borah |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Sterile neutrino Physics beyond the Standard Model High Energy Physics::Phenomenology Astronomy and Astrophysics Atomic and Molecular Physics and Optics MAJORANA Seesaw molecular geometry Leptogenesis High Energy Physics::Experiment Neutrino Neutrino oscillation Lepton |
| Zdroj: | International Journal of Modern Physics A. 30:1550130 |
| ISSN: | 1793-656X 0217-751X |
| DOI: | 10.1142/s0217751x15501304 |
| Popis: | We study the effects of Majorana neutrino phases in lepton flavor violation and the origin of matter–antimatter asymmetry through the mechanism of leptogenesis within the framework of a model where both type I and type II seesaw mechanisms can contribute to tiny neutrino masses. We parametrize the type I seesaw mass matrix by assuming it to give rise to a tri-bimaximal (TBM) type neutrino mixing which predicts [Formula: see text]. The type II seesaw mass matrix is then constructed in such a way that the necessary deviation from TBM mixing and the best fit values of neutrino parameters can be obtained when both type I and type II seesaw contributions are taken into account. Considering both subleading as well as equally dominating type II seesaw term, we first constrain the Majorana CP phases from the requirement of producing correct baryon asymmetry through leptogenesis and then incorporating the experimental bounds on lepton flavor violating decays [Formula: see text] and [Formula: see text]. |
| Databáze: | OpenAIRE |
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