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arXiv · 0809.1185

The Unique Horizontal Symmetry of Leptons

C. S. Lam
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Abstract

There is a group-theoretical connection between fermion mixing matrices and minimal horizontal symmetry groups. Applying this connection to the tri-bimaximal neutrino mixing matrix, we show that the minimal horizontal symmetry group for leptons is uniquely $S_4$, the permutation group of four objects.

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C. S. Lam. 2008-10-20. The Unique Horizontal Symmetry of Leptons. https://doi.org/10.1103/physrevd.78.073015

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