Neutrino Masses in E_6 Unification

Details Neutrino Masses in E_6 Unification Neutrino Masses in E_6 Unification

1999-01-30

arxiv.org/abs/hep-ph/9902204v2

Prog.Theor.Phys. 101 (1999) 1313-1333

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 pages, 2 eps figures, v2 (almost published version)

Scientific paper

10.1143/PTP.101.1313

We show that the neutrino masses with large mixing between \nu_\mu and \nu_\tau are 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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