November 15, 10:15 in E204   

Kirtiman Ghosh (Helsinki)


Diphoton Events with Large Missing Transverse Energy at the LHC

Abstract: The search for diphoton events with large missing transverse energy was recently communicated by the ATLAS collaboration. The result is based on the data collected with the ATLAS detector in proton-proton collisions at 7 TeV center of mass energy and 3.1 inverse femtobarn integrated luminosity. Above the Standard Model background prediction, no excess of such events was reported. In the context of a specific model with one Universal Extra Dimension with compactification radius R and gravity-induced decays, we reanalyze the ATLAS search result and put constraints on the parameters of this model.