Supersymmetric model of quasi-degenerate neutrinos

Details Supersymmetric model of quasi-degenerate neutrinos Supersymmetric model of quasi-degenerate neutrinos

1997-11-06

arxiv.org/abs/hep-ph/9711259v1

Phys.Lett. B420 (1998) 83-90

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages LaTeX, two EPS figures

Scientific paper

10.1016/S0370-2693(97)01498-6

We present a supersymmetric model of fermion masses, based on a non-Abelian family symmetry and the Froggatt-Nielsen mechanism, that can account for the solar and atmospheric neutrino problems via quasi-degenerate neutrinos. The model predicts that the ratio of neutrino mass squared splittings \Delta m^2_{12} / \Delta m^2_{23} is of order m_s^2/m_b^2, and the angles \theta_{12} \sim m_d/m_s and \theta_{23} \sim 1, which are of the desired orders of magnitude. We discuss the implications of the flavor structure of the neutrino sector on superparticle masses and mixing angles.

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