Search for diphoton events with large missing transverse momentum in 7 TeV proton-proton collision data with the ATLAS detector
2012 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 718, no 2, 411-430 p.Article in journal (Refereed) Published
A search for diphoton events with large missing transverse momentum has been performed using proton-proton collision data at is root s = 7 TeV recorded with the ATLAS detector, corresponding to an integrated luminosity of 4.8 fb(-1). No excess of events was observed above the Standard Model prediction and model-dependent 95% confidence level exclusion limits are set. In the context of a generalised model of gauge-mediated supersymmetry breaking with a bino-like lightest neutralino of mass above 50 GeV, gluinos (squarks) below 1.07 TeV (0.87 TeV) are excluded, while a breaking scale Lambda below 196 TeV is excluded for a minimal model of gauge-mediated supersymmetry breaking. For a specific model with one universal extra dimension, compactification scales 1/R < 1.40 TeV are excluded. These limits provide the most stringent tests of these models to date.
Place, publisher, year, edition, pages
2012. Vol. 718, no 2, 411-430 p.
IdentifiersURN: urn:nbn:se:su:diva-87779DOI: 10.1016/j.physletb.2012.10.069ISI: 000312687700016OAI: oai:DiVA.org:su-87779DiVA: diva2:606278
FunderSwedish Research CouncilKnut and Alice Wallenberg Foundation