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Abelian and non-Abelian discrete symmetries in models of flavour

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If you have a question about this talk, please contact Helen Vryonidou .

Discrete symmetries play a crucial role in physics beyond the Standard Model. Focusing on supersymmetric models which aim at explaining the family structure of the quarks and leptons, I first discuss how discrete Abelian symmetries such as e.g. R-parity can emerge from an underlying U(1) Froggatt-Nielsen family symmetry. The observation of large and very peculiar mixing angles in the neutrino sector motivates the idea a non-Abelian discrete family symmetry. I review their implementation in supersymmetric model building, and discuss the implications of the recent measurement of theta_13 of about 9 degrees by the Daya Bay and RENO experiments.

This talk is part of the HEP phenomenology joint Cavendish-DAMTP seminar series.

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