Discriminating neutrino mass models using Type II seesaw formula

Details Discriminating neutrino mass models using Type II seesaw formula Discriminating neutrino mass models using Type II seesaw formula

2004-06-07

arxiv.org/abs/hep-ph/0406075v2

Pramana66:361-376,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

No change in the results, a few references added, some changes in Type[IIB] calculations

Scientific paper

10.1007/BF02704390

In this paper we propose a kind of natural selection which can discriminate the three possible neutrino mass models, namely the degenerate, inverted hierarchical and normal hierarchical models, using the framework of Type II seesaw formula. We arrive at a conclusion that the inverted hierarchical model appears to be most favourable whereas the normal hierarchical model follows next to it. The degenerate model is found to be most unfavourable. We use the hypothesis that those neutrino mass models in which Type I seesaw term dominates over the Type II left-handed Higgs triplet term are favoured to survive in nature.

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