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arXiv · hep-ph/9902204

Neutrino Masses in E_6 Unification

Masako Bando·Taichiro Kugo
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Abstract

We show that the neutrino masses with large mixing between ν_μand ν_τare naturally reproduced in a supersymmetric E_6 grand unification model with an anomalous U(1)_X symmetry. We propose a simple scenario which incorporates a novel mechanism called `E-twisting' by which all the characteristic features of the fermion mass matrices, not only the quark/lepton's Dirac masses but also the neutrino's Majorana masses, can be well reproduced despite all the members in 27 of each generation are assigned a common U(1)_X charge.

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Masako Bando, Taichiro Kugo. 1999-05-22. Neutrino Masses in E_6 Unification. https://doi.org/10.1143/ptp.101.1313

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