Lepton number violating mSUGRA and neutrino masses

Understand

We perform a quantitative study of neutrino phenomenology in the framework of minimal supergravity (mSUGRA) with grand unified theory (GUT)-scale tri-linear lepton number violation.

• We show that only two non-zero GUT scale lepton number violating parameters and three charged lepton mixing angles are sufficient to account for current neutrino oscillation data.
• This allows collider studies to be performed in a manageable parameter space.
• We discuss some phenomenological consequences of the models, including tuning issues.