Lepton flavour violating processes in an S_3-symmetric model

Abstract

A variety of lepton flavour violating effects related to the recent discovery of neutrino oscillations and mixings is here systematically discussed in terms of an S_3-flavour permutational symmetry. After presenting some relevant results on lepton masses and mixings, previously derived in a minimal S_3-invariant extension of the Standard Model, we compute the branching ratios of some selected flavour-changing neutral current processes (FCNC) as well as the contribution of the exchange of neutral flavour-changing scalar to the anomaly of the magnetic moment of the muon. We found that the minimal S_3-invariant extension of the Standard Model describes successfully masses and mixings, as well as, all flavour changing neutral current processes in excellent agreement with experiment.

Talk given at XXXI Symposium on Nuclear Physics, Cocoyoc Mexico, January of 2008. To appear in Revista Mexicana de Fisica

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• Neutrino masses and mixings and...
• Search for Lepton Flavor Violating tau Decays into Three Leptons

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