A Measurement of Neutralino Mass at the LHC in Light Gravitino Scenarios
arXiv:0805.2502 · doi:10.1016/j.physletb.2008.07.010
Abstract
We consider supersymmetric (SUSY) models in which a very light gravitino is the lightest SUSY particle. Assuming that a neutralino is the next-to-lightest SUSY particle, we present a measurement of the neutralino mass at the LHC in two photons + missing energy events, which is based on the MT2 method. It is a direct measurement of the neutralino mass itself, independent of other SUSY particle masses and patterns of cascade decays before the neutralino is produced.
12 pages, 6 figures
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- A Test for Light Gravitino Scenario at the LHC
- Low Scale Direct Gauge Mediation with Perturbatively Stable Vacuum
- Higgs Boson Decays to Neutralinos in Low-Scale Gauge Mediation
- Mass Determination of New Particle States
- The Lightest Massive Invisible Particles at the LHC