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Large Mixing Angle MSW Solution in U(1) Flavor Symmetry

M. Tanimoto
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Abstract

We have discussed the quark-lepton mass matrices with the U(1) flavor symmetry in SU(5), which lead to the large mixing angle MSW solution of solar neutrinos. The solar neutrino solution depends on the next-leading terms in the neutrino mass matrix. We have found the lepton mass matrices with the $U(1)\times Z_2$ symmetry, which give the LMA-MSW solution uniquely. The coefficients of the matrix elements of the charged leptons are constrained strongly due to the bound of $U_{e3}$ in the CHOOZ experiment.

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M. Tanimoto. 2000-12-21. Large Mixing Angle MSW Solution in U(1) Flavor Symmetry. https://doi.org/10.1016/s0370-2693(01)00120-4

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