New Solution for Neutrino Masses and Leptogenesis in Adjoint SU(5)
High Energy Physics - Phenomenology
2011-07-26 v3
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 \rho_0, \rho_3 and \rho_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.
Keywords
Cite
@article{arxiv.1105.4546,
title = {New Solution for Neutrino Masses and Leptogenesis in Adjoint SU(5)},
author = {Kristjan Kannike and Dmitry Zhuridov},
journal= {arXiv preprint arXiv:1105.4546},
year = {2011}
}
Comments
16 pages, 4 figures; references added and typos fixed