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arXiv · 1105.4546

New Solution for Neutrino Masses and Leptogenesis in Adjoint SU(5)

Kristjan Kannike·Dmitry Zhuridov
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Abstract

We investigate baryogenesis via leptogenesis and generation of neutrino masses and mixings through the Type I plus Type III seesaw plus an one-loop mechanism in the context of Renormalizable Adjoint SU(5) theory. One light neutrino remains massless, because the contributions of three heavy Majorana fermions ρ_0, ρ_3 and ρ_8 to the neutrino mass matrix are not linearly independent. However none of these heavy fermions is decoupled from the generation of neutrino masses. This opens a new range in parameter space for successful leptogenesis, in particular, allows for inverted hierarchy of the neutrino masses.

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Kristjan Kannike, Dmitry Zhuridov. 2011-07-09. New Solution for Neutrino Masses and Leptogenesis in Adjoint SU(5). https://doi.org/10.1007/jhep07(2011)102

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