par Chatrchyan, Serguei;Charaf, Othman 
;Clerbaux, Barbara ;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hammad, Grégory ;Hreus, Tomas ;Marage, Pierre ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal
Référence The Journal of high energy physics, 2011, 6, 093
Publication Publié, 2011
;Clerbaux, Barbara ;De Lentdecker, Gilles ;Dero, Vincent ;Gay, Arnaud ;Hammad, Grégory ;Hreus, Tomas ;Marage, Pierre ;Thomas, Laurent ;Vander Velde, Catherine ;Vanlaer, Pascal Référence The Journal of high energy physics, 2011, 6, 093
Publication Publié, 2011
Article révisé par les pairs
| Résumé : | 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. |
