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

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.

17 pages, 4 figures; EPJC version

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• Precise reconstruction of sparticle masses without ambiguities
• Decays of $H^0/A^0$ in supersymmetric scenarios with heavy sfermions
• Mass determination in sequential particle decay chains
• Slim SUSY
• Gluino Decay as a Probe of High Scale Supersymmetry Breaking
• Amplification of endpoint structure for new particle mass measurement at the LHC
• Effects of QCD radiation on inclusive variables for determining the scale of new physics at hadron colliders
• A Simple Mass Reconstruction Technique for SUSY particles at the LHC
• Neutralino Reconstruction at the LHC from Decay-frame Kinematics
• Determination of supersymmetric masses using kinematic fits at the LHC
• ${\mathbb{Z}}_2\times {\mathbb{Z}}_2$ Equivariant Quantum Neural Networks: Benchmarking against Classical Neural Networks
• Measuring the Mass of Dark Matter at the LHC
• Hidden Thresholds: Reconstructing NP Masses