Lepton Flavor Model from Delta(54) Symmetry

Details Lepton Flavor Model from Delta(54) Symmetry Lepton Flavor Model from Delta(54) Symmetry

2008-11-28

arxiv.org/abs/0811.4683v4

JHEP 0904:011,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

19 pages, 7 figures; some discussions are modified

Scientific paper

10.1088/1126-6708/2009/04/011

We present the lepton flavor model with $\Delta (54)$, which appears typically in heterotic string models on the $T^2/Z_3$ orbifold. Our model reproduces the tri-bimaximal mixing in the parameter region around degenerate neutrino masses or two massless neutrinos. We predict the deviation from the tri-bimaximal mixing by putting the experimental data of neutrino masses in the normal hierarchy of neutrino masses. The upper bound of $\sin^2\theta_{13}$ is 0.01. There is the strong correlation between $\theta_{23}$ and $\theta_{13}$. Unless $\theta_{23}$ is deviated from the maximal mixing considerably, $\theta_{13}$ remains to be tiny.

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