Lepton flavor violation in lopsided models and a neutrino mass model

Abstract

A widely adopted theoretical scheme to account for the neutrino oscillation phenomena is the see-saw mechanism together with the ``lopsided'' mass matrices, which is generally realized in the framework of supersymmetric grand unification. We will show that this scheme leads to large lepton flavor violation at low energy if supersymmetry is broken at the GUT or Plank scale. Especially, the branching ratio of $\mu \to e\gamma$ already exceeds the present experimental limit. We then propose a phenomenological model, which can account for the LMA solution to the solar neutrino problem and at the same time predict branching ratio of $\mu \to e\gamma$ below the present limit.

15 pages, 4 figures

Cited by in corpus (9)

• Massive Neutrinos and Flavour Violation
• The See-Saw Mechanism, Neutrino Yukawa Couplings, LFV Decays l_i to l_j + gamma and Leptogenesis
• Higgs boson of mass 125 GeV in GMSB models with messenger-matter mixing
• Anomalous U(1) symmetry and lepton flavor violation
• Lepton Flavor Violation, Neutralino Dark Matter and the Reach of the LHC
• SUSY GUT Models of Neutrino Mass and mu to e gamma
• Asymmetry and Minimality of Quark Mass Matrices
• SUSY Seesaw and FCNC
• Distinguishing Between Hierarchical and Lop-sided SO(10) Models