Long-lived staus at the LHC

TL;DR

This paper investigates the detection prospects of long-lived staus at the LHC within supersymmetric models featuring a weakly interacting LSP, providing robust mass limits based on simplified models.

Contribution

It introduces a framework for assessing LHC sensitivity to long-lived staus in supersymmetry, deriving mass limits using simplified models.

Findings

Robust limits on stau, gluino, and squark masses.

Enhanced detection strategies for long-lived particles at the LHC.

Framework applicable to various supersymmetric scenarios.

Abstract

Supersymmetric scenarios with a very weakly interacting lightest superparticle (LSP) - like the gravitino or axino - naturally give rise to a long-lived next-to-LSP (NLSP). In the case of a stau NLSP, the scenario shows up in a very prominent way at colliders. We present the LHC sensitivity for these classes of scenarios in the framework of simplified models. This allows for deriving robust limits on the masses of the lightest stau, the gluino and squarks.