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arXiv · 1206.1966

Neutrino masses in a 331 model with right-handed neutrinos without doubly charged Higgs

M. E. Cataño·R Martínez·F. Ochoa
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Abstract

We discuss a 331 model with three scalar triplets and neutral fermion singlets. We show that in the 331 model with right-handed neutrinos, it is possible to obtain small active neutrino masses via the double and inverse seesaw mechanisms, without the use of scalar sextets or triplets with doubly-charged Higgs. Two types of models are discussed. If we have a large Majorana mass matrix for the singlets, the spectrum of neutrinos presents light, heavy and very heavy masses. The other possibility is a small (zero) Majorana mass matrix, which leads to pseudo-Dirac (Dirac) heavy neutrinos in the TeV scale, in addition to the active light neutrinos

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M. E. Cataño, R Martínez, F. Ochoa. 2012-09-14. Neutrino masses in a 331 model with right-handed neutrinos without doubly charged Higgs. https://doi.org/10.1103/physrevd.86.073015

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