Long-Lived Particle Searches in R-Parity Violating MSSM

TL;DR

This paper investigates how long-lived particles in R-Parity violating MSSM can be detected at the LHC through displaced vertex signatures, setting limits on couplings and sparticle masses based on experimental searches.

Contribution

It provides the first detailed analysis of LHC constraints on long-lived LSPs in RPV MSSM, linking decay signatures to specific model parameters.

Findings

Limits on RPV Yukawa couplings for displaced vertices

Excluded regions of sparticle masses based on ATLAS and CMS data

Feasibility of observing vertex displacement at the LHC

Abstract

In this paper we study the constraints on MSSM R-Parity violating decays when the Lightest Superpartner (LSP) is moderately long lived. In this scenario the LSP vertex displacement may be observed at the LHC. We compute limits on the RPV Yukawa couplings for which the vertex displacement signature maybe used. We then use ATLAS and CMS displaced vertex, meta-stable and prompt decay searches to rule out a region of sparticle masses.