Supersymmetry with Trilinear R-Parity Violation at the LHC

TL;DR

This paper explores how trilinear R-parity violation in supersymmetry alters LHC signatures, shifting from missing energy to high lepton and jet multiplicity, and proposes methods to analyze these effects.

Contribution

It provides a comprehensive study of neutralino decays via all 45 R-parity violating operators, enabling detection of operator hierarchies and neutralino mass measurement.

Findings

Neutralino decays produce distinctive multi-lepton/jet signatures.

Analysis of all 45 operators reveals potential hierarchies.

Method enables neutralino mass determination in R-parity violating scenarios.

Abstract

The inclusion of trilinear R-parity violating couplings in a supersymmetric theory, has monumental impacts on the phenomenology. Regarding LHC physics, we no longer expect events with a lot of missing transverse energy, but events with large lepton and/or jet multiplicity. Here we present a study where the standard MSSM scenario of squark and gluino pair production and consequent cascade decay to the neutralino, is followed by a three-body decay of the neutralino through any of the 45 allowed trilinear R-parity violating operators. This allows us to study all these operators and detect any hierarchies among them as well as measuring the neutralino mass.