Lepton Flavour Violation in a Class of Lopsided SO(10) Models

Abstract

A class of predictive SO(10) grand unified theories with highly asymmetric mass matrices, known as lopsided textures, has been developed to accommodate the observed mixing in the neutrino sector. The model class effectively determines the rate for charged lepton flavour violation, and in particular the branching ratio for $\mu ->e\gamma$, assuming that the supersymmetric GUT breaks directly to the constrained minimal supersymmetric standard model (CMSSM). We find that in light of the combined constraints on the CMSSM parameters from direct searches and from the WMAP satellite observations, the resulting predicted rate for $\mu ->e\gamma$ in this model class can be within the current experimental bounds for low $\tan \beta$, but that the next generation of $\mu ->e\gamma$ experiments would effectively rule out this model class if LFV is not detected.

23 pages

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• Bounds on the Neutrino Mixing Angles and CP Phase for an SO(10) Model with Lopsided Mass Matrices
• Lepton Flavor Violation within a realistic SO(10)/G(224) Framework
• Supersymmetric Lepton Flavour Violation at the LHC and LC
• Doubly Lopsided Mass Matrices from Supersymmetric SU(N) Unification
• Distinguishing Between Hierarchical and Lop-sided SO(10) Models
• Flavor Violation in a Minimal SO(10)\times A_4 SUSY GUT