Pattern of Neutrino Oscillations in Supersymmetry with Bilinear R-parity Violation

TL;DR

This paper investigates neutrino masses and mixing in a supersymmetric model with bilinear R-parity violation, revealing a restricted neutrino mixing matrix and supporting the small angle MSW solution for solar neutrinos, with collider implications.

Contribution

It provides a detailed analysis of neutrino oscillations within a supersymmetric framework with bilinear R-parity violation, highlighting the constraints on mixing and compatibility with experimental data.

Findings

Only the small angle MSW solution fits solar neutrino data.

The neutrino mixing matrix is highly restricted in this model.

Collider signals consistent with the model are discussed.

Abstract

Neutrino masses and their mixing are studied in detail in the framework of a supersymmetric standard model with bilinear R-parity violation. In this scenario, the mixing matrix among the neutrinos is in a restrictive form. We find that only the small angle MSW solution is allowed for the solar neutrino problem when the results of the CHOOZ experiment are combined with the mass squared difference and mixing angle suggested by the atmospheric neutrino data. Collider signals of this scenario are also discussed.