The Neutrino Mass Spectrum in the Supersymmetric Flipped SU(5)xU(1) GUT Model

Details The Neutrino Mass Spectrum in the Supersymmetric Flipped SU(5)xU(1) GUT Model The Neutrino Mass Spectrum in the Supersymmetric Flipped SU(5)xU(1) GUT Model

1993-11-18

arxiv.org/abs/hep-ph/9311310v1

Phys.Lett. B324 (1994) 370-375

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages UAB-FT-324

Scientific paper

10.1016/0370-2693(94)90208-9

In the context of the supersymmetric flipped $SU(5)\otimes U(1)$ GUT model, we have studied in detail the neutrino mass spectrum, obtaining an approximate formula for the corresponding effective three-generation mass matrix. It is found that at least two neutrinos are expected to have extremely small masses of no particular interest. The third neutrino, on the other hand, may eventually get a mass of order $10^{-3}$ eV, of relevance for the solution of the solar neutrino problem with the MSW mechanism, as a consequence of vacuum-expectation-values at the GUT mass scale for some of the scalar partners of the right-handed neutrinos.

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