Title
Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeVSearch for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Research group
Elementary Particle Physics
Publication type
article
Publication
Bristol,
Subject
Physics
Source (journal)
Journal of high energy physics. - Bristol
Volume/pages
(2011):6, p. 1-28
ISSN
1126-6708
1029-8479
ISI
000293136600020
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
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=7 TeV. 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% confidence 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.
E-info
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