Search for heavy, long-lived neutralinos that decay to photons at CDF II using photon timing Universiteit Antwerpen
We present the results of the first hadron collider search for heavy, long-lived neutralinos that decay via χ10→γG in gauge-mediated supersymmetry breaking models. Using an integrated luminosity of 570±34  pb-1 of pp̅ collisions at √s=1.96  TeV, we select γ+jet+missing transverse energy candidate events based on the arrival time of a high-energy photon at the electromagnetic calorimeter as measured with a timing system that was recently ...