Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at √ 8 = 7 TeV

The CMS collaboration

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Resumen

A search is performed for an excess of events, over the standard model expectations, with a photon, a lepton, and large missing transverse energy in pp collisions at s√ = 7TeV. Such events are expected in many new physics models, in particular a supersymmetric theory that is broken via a gauge-mediated mechanism, when the lightest charged and neutral gauginos are mass degenerate. The data sample used in this search corresponds to an integrated luminosity of 35 pb-1 collected with the CMS detector at the LHC. No evidence of such an excess above the standard model backgrounds, dominated by W production, is found. The results are presented as 95% con dence level upper limits on the cross section for a benchmark gauge-mediated scenario, and are then converted into exclusion limits on the squark, gluino, and wino masses.

Idioma originalInglés
Número de artículo93
PublicaciónJournal of High Energy Physics
Volumen2011
N.º6
DOI
EstadoPublicada - 2011
Publicado de forma externa

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