Search For Non Pointing Photons In The Diphoton And Missing Transverse Energy Final State In 7 Tev Pp Collisions Using The Atlas Detector
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Search for Non-Pointing Photons in the Diphoton and Missing Transverse Energy Final State in 7 TeV Pp Collisions Using the ATLAS Detector
The gravitinos escape the detector, giving rise to missing energy, while the photons can appear not to originate from the primary vertex of the event, and are measured with a delay with respect to the collision time. No excess was observed above the background expected from Standard Model processes. The results were used to set exclusion limits at 95% CL in the two-dimensional parameter space defined by the supersymmetry breaking scale and the lifetime of the lightest neutralino.