Neutrino oscillations in a $3ν_L+3ν_R$ framework with five light neutrinos

Details Neutrino oscillations in a $3ν_L+3ν_R$ framework with five light neutrinos Neutrino oscillations in a $3ν_L+3ν_R$ framework with five light neutrinos

1998-05-13

arxiv.org/abs/hep-ph/9805305v3

Int.J.Mod.Phys. A15 (2000) 3967-3992

Physics

High Energy Physics

High Energy Physics - Phenomenology

30 pages, latex, no figures, some errors and typos corrected, references updated, version published in Int. J. Mod. Phys. A

Scientific paper

10.1142/S0217751X00002820

We propose a neutrino mass matrix model in which five neutrino species remain light through the seesaw mechanism within a supersymmetric $3\nu_L+3\nu_R$ framework. We construct such a model based on the nonrenormalizable terms in the superpotential constrained by the discrete symmetry which may be expected in the models at the high energy scale such as superstring. We study the possible oscillation phenomena by fixing mass parameters so as to explain the solar and atmospheric neutrino deficits and also include a candidate of the suitable dark matter. We also discuss the charged lepton mass matrix based on this neutrino model. LSND results may be consistently explained within this model.

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