Seesaw neutrino masses from an $A_4$ model with two equal vacuum expectation values

Details Seesaw neutrino masses from an $A_4$ model with two equal vacuum expectation values Seesaw neutrino masses from an $A_4$ model with two equal vacuum expectation values

2011-11-24

arxiv.org/abs/1111.5859v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages, 8 figures; v2: added more complete analysis of LEP and Tevatron bounds

Scientific paper

We present a model for the lepton sector, with $A_4$ horizontal-symmetry
group, in which two of the Higgs doublets in an $A_4$ triplet of Higgs doublets
have equal vacuum expectation values. The model makes well-defined predictions
for the effective light-neutrino Majorana mass matrix. We show that those
predictions are compatible with the experimental data.

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