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arXiv · 0804.2622

The Horizontal Symmetry for Neutrino Mixing

C. S. Lam
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Abstract

We argue that the best way to determine horizontal symmetry is from neutrino mixing, and proceed to show that the only finite group capable of yielding the tri-bimaximal mixing for all Yukawa couplings is $S_4$, or any group containing it. The method used is largely group theoretical, but it can be implemented by dynamical schemes in which the Higgs expectation values introduced to break $S_4$ spontaneously are uniquely determined up to an unknown scale for each.

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C. S. Lam. 2008-09-06. The Horizontal Symmetry for Neutrino Mixing. https://doi.org/10.1103/physrevlett.101.121602

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