Search for Anomalous Production of Diphoton Events with Missing Transverse Energy at CDF and Limits on Gauge-Mediated Supersymmetry-Breaking Models

Abstract

We present the results of a search for anomalous production of diphoton events with large missing transverse energy using the Collider Detector at Fermilab. In 202 $\invpb$ of $\ppbar$ collisions at $\sqrt{s}=1.96$ TeV we observe no candidate events, with an expected standard model background of $0.27\pm 0.07(\mathrm{stat})\pm 0.10(\mathrm{syst})$ events. The results exclude a lightest chargino of mass less than 167 GeV/$c^2$, and lightest neutralino of mass less than 93 GeV/$c^2$ at 95% C.L. in a gauge--mediated supersymmetry-- breaking model with a light gravitino.

arXiv comment9 Pages, 2 Figures. Phys. Rev. D - Rapid Communications

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Cited by in corpus (17)

• Model-Independent and Quasi-Model-Independent Search for New Physics at CDF
• Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II
• Limits on Anomalous Trilinear Gauge Couplings in Zgamma Events from ppbar Collisions at sqrt{s} = 1.96 TeV
• Search for Supersymmetry in Di-Photon Final States at sqrt{s} = 1.96 TeV
• Search for diphoton events with large missing transverse energy in 6.3 fb-1 of ppbar collisions at sqrt(s)=1.96 TeV
• Search for Heavy, Long-Lived Particles that Decay to Photons at CDF II
• Search for Heavy, Long-Lived Neutralinos that Decay to Photons at CDF II Using Photon Timing
• Search for Anomalous Production of Events with Two Photons and Additional Energetic Objects at CDF
• A Gauge-Mediation Model with a Light Gravitino of Mass O(10) eV and the Messenger Dark Matter
• Search for Excited Quarks in $q\bar{q}\to \gamma \gamma$ at the LHC
• Search for Light Gravitinos in Events with Photons and Missing Transverse Momentum at HERA
• Search for Zgamma events with large missing transverse energy in ppbar collisions at sqrt(s)=1.96 TeV
• Search for Anomalous Production of Events with a Photon, Jet, b-quark Jet, and Missing Transverse Energy
• Review of searches for Higgs bosons and beyond the standard model physics at the Tevatron
• Implications for cognitive quantum computation and decoherence limits in the presence of large extra dimensions
• Cosmo-Particle Searches for Supersymmetry at the Collider Detector at Fermilab
• Searches for New Physics in Photon Final States