Measurements in Gauge Mediated SUSY Breaking Models at LHC

TL;DR

This paper explores gauge mediated supersymmetry breaking models at the LHC, demonstrating a new event reconstruction technique that allows direct superparticle mass measurements and precise model parameter determination.

Contribution

It introduces a novel method for full reconstruction of SUSY events with unobserved particles, enhancing measurement accuracy at the LHC.

Findings

The new technique enables direct superparticle mass measurement.

LHC can over-constrain models for precise parameter determination.

Characteristic SUSY signatures can be identified in gauge mediated models.

Abstract

Characteristic examples are presented of scenarios of particle production and decay in supersymmetry models in which the supersymmetry breaking is transmitted to the observable world via gauge interactions. The cases are chosen to illustrate the main classes of LHC phenomenology that can arise in these models. A new technique is illustrated that allows the full reconstruction of supersymmetry events despite the presence of two unobserved particles. This technique enables superparticle masses to be measured directly rather than being inferred from kinematic distributions. It is demonstrated that the LHC is capable of making sufficient measurements so as to severely over-constrain the model and determine the parameters with great precision