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Discrete symmetries and neutrino masses

Department of Physics, Chung-Ang University, Seoul 156-756, Korea

^*Electronic address: siyeon@cau.ac.kr

Phys. Rev. D 71, 036005 – Published 25 February, 2005

DOI: https://doi.org/10.1103/PhysRevD.71.036005

Abstract

We constructed a model of neutrino masses using Froggatt-Nielsen mechanism with $U (1) \times Z_{3} \times Z_{2}$ flavor symmetry. The model predicts that $(2 / 3) m_{2} / m_{3} \sim \sqrt{2} \sin θ_{13}$ at lepton number violating scale $M_{1}$ . It is shown that the small values for $m_{2} / m_{3}$ and $\sin θ_{13}$ are consequences of breaking discrete symmetries.

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Discrete symmetries and neutrino masses

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