Probing neutralino properties in minimal supergravity with bilinear R-parity violation

TL;DR

This paper investigates how minimal supergravity models with bilinear R-parity violation can be tested at the LHC by analyzing neutralino decay properties, linking collider signals to neutrino physics.

Contribution

It introduces a method to determine neutralino properties in BRPV models at the LHC and relates these to neutrino mass and mixing parameters.

Findings

Neutralino decay length can be detectable at the LHC.

LHC measurements can constrain neutralino mass and branching ratios.

Results connect collider signals with neutrino oscillation data.

Abstract

Supersymmetric models with bilinear R-parity violation (BRPV) can account for the observed neutrino masses and mixing parameters indicated by neutrino oscillation data. We consider minimal supergravity versions of BRPV where the lightest supersymmetric particle (LSP) is a neutralino. This is unstable, with a large enough decay length to be detected at the CERN Large Hadron Collider (LHC). We analyse the LHC potential to determine the LSP properties, such as mass, lifetime and branching ratios, and discuss their relation to neutrino properties.