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Search for Supersymmetry in pp Collisions at √s=7  [square root of s=7] TeV in Events with Two Photons and Missing Transverse Energy

Author(s)
Alver, Burak Han; Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Dutta, Valentina; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Harris, Philip Coleman; Klute, Markus; Lee, Yen-Jie; Ma, Teng; Nahn, Steven; Paus, Christoph M. E.; Ralph, Duncan Kelley; Rudolph, Matthew Scott; Stephans, George S. F.; Sung, Kevin Kai Hong; Wenger, Edward Allen; Xie, Si; Yang, Mingming; Yilmaz, Yetkin; Zanetti, Marco; Kim, Y.; Loizides, Constantinos; Roland, Christof E; Stoeckli, Fabian; Bauer, Gerry P; Li, W.; Luckey Jr, P David; Roland, Gunther M; Sumorok, Konstanty C; Yoon, A. S.; Chan, M.; ... Show more Show less
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Abstract
A search for supersymmetry in the context of general gauge-mediated breaking with the lightest neutralino as the next-to-lightest supersymmetric particle and the gravitino as the lightest is presented. The data sample corresponds to an integrated luminosity of 36  pb-1 [pb superscript -1] recorded by the CMS experiment at the LHC. The search is performed by using events containing two or more isolated photons, at least one hadronic jet, and significant missing transverse energy. No excess of events at high missing transverse energy is observed. Upper limits on the signal cross section for general gauge-mediated supersymmetry between 0.3 and 1.1 pb at the 95% confidence level are determined for a range of squark, gluino, and neutralino masses, excluding supersymmetry parameter space that was inaccessible to previous experiments.
Date issued
2011-05
URI
http://hdl.handle.net/1721.1/65950
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical review letters
Publisher
American Physical Society
Citation
Chatrchyan, S. et al. (CMS Collaboration) "Search for Supersymmetry in pp Collisions at √s=7  [square root of s=7] TeV in Events with Two Photons and Missing Transverse Energy" Phys. Rev. Lett. 106, 211802 (2011) © 2011 CERN, for the CMS Collaboration
Version: Final published version
ISSN
0031-9007

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