Majorana Neutrino Masses from Flavor Symmetries
A. Psallidas
Abstract
In this talk we discuss the implications of the Minimal Supersymmetric Standard Model augmented by a single U(1) anomalous family symmetry for neutrino masses and mixing angles. The left-handed neutrino states are provided with Majorana masses through a dimension-five operator in the absence of right handed neutrino components. Assuming symmetric lepton mass matrices, the model predicts inverse hierarchical neutrino mass spectrum, theta13=0 and large mixing while at the same time it provides acceptable mass matrices for the charged fermions.
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