Supersymmetric model of quasi-degenerate neutrinos

1997/11/06 by Christopher D. Carone, Marc Sher · 3 citations
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Neutrino Physics Research #Particle physics theoretical and experimental studies #hep-ph

paper · pdf · doi:10.1016/s0370-2693(97)01498-6

published as Phys.Lett. B420 (1998) 83-90 · 14 pages LaTeX, two EPS figures

arxiv created 1997/11/06 · openalex publication_date 1998/02/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

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 Δm²₁₂ / Δm²₂₃ is of order m_s²/m_b², and the angles θ₁₂ ∼ m_d/m_s and θ₂₃ ∼ 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.

Citations

• Should squarks be degenerate?
• A new lepton-quark mass relation in a unified theory

Cited by

• Nearly degenerate neutrinos, supersymmetry and radiative corrections
• θ13, rare decays and leptonic CP violation
• Quasidegenerate neutrinos and tribimaximal mixing