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arXiv · hep-ph/0701016

New Lepton Family Symmetry and Neutrino Tribimaximal Mixing

Ernest Ma
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Abstract

The newly proposed finite symmetry Sigma(81) is applied to the problem of neutrino tribimaximal mixing. The result is more satisfactory than those of previous models based on A_4 in that the use of auxiliary symmetries (or mechanisms) may be avoided. Deviations from the tribimaximal pattern are expected, but because of its basic structure, only tan^2 (theta_12) may differ significantly from 0.5 (say 0.45) with sin^2 (2 theta_23) remaining very close to one, and theta_13 very nearly zero.

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Ernest Ma. 2007-07-31. New Lepton Family Symmetry and Neutrino Tribimaximal Mixing. https://doi.org/10.1209/0295-5075%2F79%2F61001

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