We present the results of a search for supersymmetry with gauge-mediated breaking and χ˜01→γG˜ in the γγ+missing transverse energy final state. In 2.6±0.2 fb−1 of pp¯ 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˜01 mass at τχ˜01≪1 ns. We also exclude regions in the χ˜01 mass-lifetime plane for τχ˜01≲2 ns.
Search for Supersymmetry with Gauge-Mediated Breaking in Diphoton Events with Missing Transverse Energy at CDF II
Cauz D.;Giordani M.;Santi L.;
2010-01-01
Abstract
We present the results of a search for supersymmetry with gauge-mediated breaking and χ˜01→γG˜ in the γγ+missing transverse energy final state. In 2.6±0.2 fb−1 of pp¯ 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˜01 mass at τχ˜01≪1 ns. We also exclude regions in the χ˜01 mass-lifetime plane for τχ˜01≲2 ns.File in questo prodotto:
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