Light gravitino production in association with gluinos at the LHC

TL;DR

This paper investigates the detection of light gravitinos produced alongside gluinos at the LHC, focusing on jets plus missing energy signatures to infer particle masses.

Contribution

It introduces a detailed simulation approach combining matrix elements and parton showers for analyzing gravitino and gluino production at the LHC.

Findings

Identification of observable signatures for gravitino and gluino masses

Simulation results showing potential to distinguish signal from background

Methodology for extracting particle mass information from final states

Abstract

We study the jets plus missing energy signature at the LHC in a scenario where the gravitino is very light and the gluino is the next-to-lightest supersymmetric particle and promptly decays into a gluon and a gravitino. We consider both associated gravitino production with a gluino and gluino pair production. By merging matrix elements with parton showers, we generate inclusive signal and background samples and show how information on the gluino and gravitino masses can be obtained by simple final state observables.