We present the results of a search for supersymmetry with gauge-mediated breaking and χ˜10→γG˜ in the γγ+missing transverse energy final state. In 2.6±0.2  fb-1 of pp̅ collisions at √s=1.96   TeV recorded by the CDF II detector we observe no candidate events, consistent with a standard model background expectation of 1.4±0.4 events. We set limits on the cross section at the 95% C.L. and place the world’s best limit of 149  GeV/c2 on the χ˜10 mass at τχ˜10≪1   ns. We also exclude regions in the χ˜10 mass-lifetime plane for τχ˜10≲2   ns.

Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II

BISELLO, DARIO;BUSETTO, GIOVANNI;LUCCHESI, DONATELLA;ROSSIN, ROBERTO;
2010

Abstract

We present the results of a search for supersymmetry with gauge-mediated breaking and χ˜10→γG˜ in the γγ+missing transverse energy final state. In 2.6±0.2  fb-1 of pp̅ collisions at √s=1.96   TeV recorded by the CDF II detector we observe no candidate events, consistent with a standard model background expectation of 1.4±0.4 events. We set limits on the cross section at the 95% C.L. and place the world’s best limit of 149  GeV/c2 on the χ˜10 mass at τχ˜10≪1   ns. We also exclude regions in the χ˜10 mass-lifetime plane for τχ˜10≲2   ns.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11577/2450041
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