Minimal seesaw mechanism
arXiv:hep-ph/0303074 · doi:10.1016/j.physletb.2003.07.087
Abstract
In the framework of the seesaw mechanism, and adopting a typical form for the Dirac neutrino mass matrix, we discuss the impact of minimal forms of the Majorana neutrino mass matrix. These matrices contain four or three texture zeros and only two parameters, a scale factor and a hierarchy parameter. Some forms are not compatible with large lepton mixing and are ruled out. Moreover, a normal mass hierarchy for neutrinos is predicted.
9 pages, RevTex4. Revised
References in corpus (13)
- Direct Evidence for Neutrino Flavor Transformation from Neutral-Current Interactions in the Sudbury Neutrino Observatory
- First Results from KamLAND: Evidence for Reactor Anti-Neutrino Disappearance
- Tri-Bimaximal Mixing and the Neutrino Oscillation Data
- Measurement of Day and Night Neutrino Energy Spectra at SNO and Constraints on Neutrino Mixing Parameters
- Indications of Neutrino Oscillation in a 250 km Long-baseline Experiment
- Symmetries and Generalisations of Tri-Bimaximal Neutrino Mixing
- Nearly Tri-Bimaximal Neutrino Mixing and CP Violation
- Structure of neutrino mass matrix and CP violation
- Neutrino mass matrix: inverted hierarchy and CP violation
- Obtaining the large angle MSW solution to the solar neutrino problem in models
- Radiative corrections to neutrino mass matrix in the Standard Model and beyond
- Seesaw mechanism, baryon asymmetry and neutrinoless double beta decay
- Model for fermion mass matrices and the origin of quark-lepton symmetry