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Measurement of W[superscript +]W[superscript −] production and search for the Higgs boson in pp collisions at √s = 7 TeV

Author(s)
Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; Everaerts, Pieter Bruno Bart; Gomez-Ceballos, Guillelmo; Goncharov, Maxim; Hahn, Kristian Allan; Kim, Y.; Klute, Markus; Li, W.; 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; Yilmaz, Y.; Yoon, A. S.; Zanetti, Marco; Wyslouch, Boleslaw; Yilmaz, Yetkin; Luckey Jr, P David; Roland, Christof E; Roland, Gunther M; Sumorok, Konstanty C; Xie, Si; Yang, Mingming; Alver, Burak Han; Bauer, Gerry P; Dutta, Valentina; Harris, Philip Coleman; Lee, Yen-Jie; Loizides, Constantinos; ... Show more Show less
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Abstract
A measurement of W[superscript +]W[superscript −] production in pp collisions at √s = 7 TeV and a search for the Higgs boson are reported. The W[superscript +]W[superscript −] candidates are selected in events with two leptons, either electrons or muons. The measurement is performed using LHC data recorded with the CMS detector, corresponding to an integrated luminosity of 36 pb[superscript −1]. The pp → W[superscript +]W[superscript −] cross section is measured to be V41.1 ± 15.3 (stat) ± 5.8 (syst) ± 4.5 (lumi) pb, consistent with the standard model prediction. Limits on WWγ and WWZ anomalous triple gauge couplings are set. The search for the standard model Higgs boson in the W[superscript +]W[superscript −] decay mode does not reveal any evidence of excess above backgrounds. Limits are set on the production of the Higgs boson in the context of the standard model and in the presence of a sequential fourth family of fermions with high masses. In the latter context, a Higgs boson with mass between 144 and 207 [GeV over c[superscript 2]] is ruled out at 95% confidence level.
Date issued
2011-03
URI
http://hdl.handle.net/1721.1/92471
Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of Science
Journal
Physics Letters B
Publisher
Elsevier
Citation
Chatrchyan, S., V. Khachatryan, A.M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of W[superscript +]W[superscript −] Production and Search for the Higgs Boson in Pp Collisions at √s = 7 TeV.” Physics Letters B 699, no. 1–2 (May 2011): 25–47. © 2011 CERN
Version: Final published version
ISSN
03702693

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