GMSB SUSY models with non pointing photons signatures in ATLAS at the LHC

TL;DR

This paper evaluates ATLAS detector's ability to identify non pointing photons crucial for studying GMSB SUSY models at the LHC, focusing on angular resolution, event reconstruction, and sensitivity to sparticle properties.

Contribution

It provides a detailed simulation-based analysis of non pointing photon reconstruction and its impact on GMSB SUSY searches at the LHC.

Findings

ATLAS electromagnetic calorimeter achieves specific angular resolution for non pointing photons.

Reconstruction effects influence the sensitivity to sparticle masses and neutralino lifetime.

The study estimates the potential to measure key GMSB parameters at the LHC.

Abstract

The reconstruction of non pointing photons is a key feature for studying gauge mediated supersymmetry breaking (GMSB) models at the LHC. In this article the angular resolution of the ATLAS electromagnetic calorimeter is characterized from a detailed simulation of the detector. Resulting performances are used to reconstruct GMSB events with a fast simulation program, taking into account reconstruction effects. Finally, the sensitivity to extract the sparticles masses and the lightest neutralino lifetime is estimated.