Majorana Neutrino Masses from Flavor Symmetries

Details Majorana Neutrino Masses from Flavor Symmetries Majorana Neutrino Masses from Flavor Symmetries

2005-05-11

arxiv.org/abs/hep-ph/0505093v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Based on a talk given in the "Workshop on Recent Advances in Particle Physics and Cosmology", Thessaloniki 2005

Scientific paper

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, theta_13=0 and large mixing while at the same time it provides acceptable mass matrices for the charged fermions.

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