Majorana Neutrino Masses from Anomalous U(1) Symmetries

Details Majorana Neutrino Masses from Anomalous U(1) Symmetries Majorana Neutrino Masses from Anomalous U(1) Symmetries

2004-04-15

arxiv.org/abs/hep-ph/0404129v1

Phys.Lett. B597 (2004) 182-191

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, no figures

Scientific paper

10.1016/j.physletb.2004.07.005

We explore the possibility of interpreting the solar and atmospheric neutrino data within the context of the Minimal Supersymmetric Standard Model augmented by a single U(1) anomalous family symmetry spontaneously broken by non-zero vacuum expectation values of a pair of singlet fields. The symmetry retains a dimension-five operator which provides Majorana masses for left-handed neutrino states. 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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