A Predictive Ansatz for Neutrino Mixing and Leptogenesis

Abstract

We propose a non-SO(10) modification of the Buchmueller-Wyler ansatz for neutrino mixing and leptogenesis, in which charged lepton, Dirac and Majorana neutrino mass matrices have fewer free parameters. Predictions of this new ansatz for three light neutrino masses, three lepton flavor mixing angles, the neutrinoless double-beta decay and the cosmological matter-antimatter asymmetry are all in very good agreement with current experimental and observational data.

Comments: RevTex 14 pages. More discussions added. Accepted for publication in Phys. Lett. B