A Test for Light Gravitino Scenario at the LHC

Abstract

Supersymmetric (SUSY) standard models in which the lightest SUSY particle (LSP) is an ultralight gravitino (m_{3/2}=O(1) eV) are very attractive, since they are free from the cosmological gravitino problems. If the neutralino is the next lightest SUSY particle (NLSP), it decays into a photon and the gravitino in collider experiments. We propose a simple test for the lightness of gravitino at the LHC.

9 pages, 2 figures

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Cited by in corpus (12)

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• Localization of Gravitino Field on $f(R)$ Thick Branes
• Collider Signatures of Minimal Flavor Mixing from Stop Decay Length Measurements
• Sgoldstino-Higgs mixing in models with low-scale supersymmetry breaking
• Low Scale Direct Gauge Mediation with Perturbatively Stable Vacuum
• A Conformal Gauge Mediation and Dark Matter with Only One Parameter
• Multi-photon signal in supersymmetry comprising non-pointing photon(s) at the LHC
• LHC Reach of Low Scale Gauge Mediation with Perturbatively Stable Vacuum
• Lepton flavor-violating decays of the Higgs boson from sgoldstino mixing
• Localization of Gravitino Field on Thin Branes
• Prospects of Searches for Gauge Mediated Supersymmetry with h^0 -> χ_1^0 χ_1^0 production in the Time-Delayed Photon + MET Final State at the Tevatron
• Prospects for measuring the mass of heavy, long-lived neutral particles that decay to photons