Abstract
Renormalizable lepton number violating interactions that break parity can induce a Majorana mass for neutrinos. Based on this, we show that it is possible to obtain a phenomenologically viable neutrino mass matrix that can accommodate atmospheric neutrino data via mixing and the solar neutrino data via either the large or small angle MSW effect. We argue that such a mass matrix could result from an approximate discrete symmetry of the superpotential that forbids renormalizable baryon number violating couplings.
- Received 16 December 1997
DOI:https://doi.org/10.1103/PhysRevD.57.R5335
©1998 American Physical Society