PoS - Proceedings of Science
Volume 414 - 41st International Conference on High Energy physics (ICHEP2022) - Neutrino Physics
Neutrino mass and leptogenesis in a type I + II seesaw model with spontaneous CP violation
R. Pramanick
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Pre-published on: December 10, 2022
Published on:
Abstract
We propose a hybrid scenario incorporating type I and type II seesaw models for neutrino mass where CP symmetry has been broken by the complex vacuum expectation value of a singlet scalar field. Applying appropriate symmetries we show that such a framework can simultaneously explain the neutrino oscillation data and measured baryon asymmetry via leptogenesis. Further, the natural choice of parameters leads to a mixed leptogenesis scenario driven by nearly degenerate right handed singlet neutrino and scalar triplet fields for which we show a detailed analysis.
DOI: https://doi.org/10.22323/1.414.0584
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