Lepton flavour violating processes in an S_3-symmetric model

Details Lepton flavour violating processes in an S_3-symmetric model Lepton flavour violating processes in an S_3-symmetric model

2008-05-22

arxiv.org/abs/0805.3507v1

Rev.Mex.Fis.S54N3:81-91,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

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

Scientific paper

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.

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