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Neutrino Mixing: Theoretical Overview

By Guido Altarelli


We present a concise review of the recent important experimental developments on neutrino mixing (hints for sterile neutrinos, large $\theta_{13}$, possible non maximal $\theta_{23}$, approaching sensitivity on $\delta_{CP}$) and their implications on models of neutrino mixing. The new data disfavour many models but the surviving ones still span a wide range going from Anarchy (no structure, no symmetry in the lepton sector) to a maximum of symmetry, as for the models based on discrete non-abelian flavour groups that can be improved following the indications from the data.Comment: 8 pages, no figures. Talk presented at Les Rencontres de Physique de la Vallee d'Aoste, La Thuile, Italy, February 201

Topics: High Energy Physics - Phenomenology
Year: 2013
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