On Measuring Split-SUSY Neutralino and Chargino Masses at the LHC

TL;DR

This paper proposes a simple kinematic method to fully reconstruct neutralino and chargino masses in Split-SUSY models at the LHC, overcoming the conventional focus on mass differences.

Contribution

The work introduces a novel kinematic selection technique enabling full mass reconstruction from a single event in Split-SUSY models at the LHC.

Findings

Monte Carlo simulations confirm the feasibility of the method.

Full mass reconstruction is possible with the proposed technique.

The approach can be applied to real LHC data.

Abstract

In Split-Supersymmetry models, where the only non-Standard Model states produceable at LHC-energies consist of a gluino plus neutralinos and charginos, it is conventionally accepted that only mass differences among these latter are measureable at the LHC. The present work shows that application of a simple `Kinematic Selection' technique allows full reconstruction of neutralino and chargino masses from one event, in principle. A Monte Carlo simulation demonstrates the feasibilty of using this technique at the LHC.