Search for leptonic decays of W′ bosons in pp collisions at √s = 7 TeV
Author(s)
Bendavid, Joshua L.; Busza, Wit; Butz, Erik M.; Cali, Ivan Amos; Chan, M.; 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; Stephans, George S. F.; Sung, Kevin Kai Hong; Velicanu, Dragos Alexandru; Wenger, Edward Allen; Wyslouch, Boleslaw; Yilmaz, Yetkin; Yoon, A. S.; Zanetti, Marco; Roland, Christof E; Roland, Gunther M; Rudolph, Matthew Scott; Stoeckli, Fabian; Sumorok, Konstanty C; Wolf, Roger; Xie, Si; Yang, Mingming; Bauer, Gerry P; Dutta, Valentina; Lee, Yen-Jie; Luckey Jr, P David; ... Show more Show less
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A search for a new heavy gauge boson W[superscript ′] decaying to an electron or muon, plus a low mass neutrino, is presented. This study uses data corresponding to an integrated luminosity of 5.0 fb[superscript −1], collected using the CMS detector in pp collisions at a centre-of-mass energy of 7 TeV at the LHC. Events containing a single electron or muon and missing transverse momentum are analyzed. No significant excess of events above the standard model expectation is found in the transverse mass distribution of the lepton-neutrino system, and upper limits for cross sections above different transverse mass thresholds are presented. Mass exclusion limits at 95% CL for a range of W[superscript ′] models are determined, including a limit of 2.5 TeV for right-handed W[superscript ′] bosons with standard-model-like couplings and limits of 2.43–2.63 TeV for left-handed W[superscript ′] bosons, taking into account their interference with the standard model W boson. Exclusion limits have also been set on Kaluza-Klein W[subscript KK] states in the framework of split universal extra dimensions.
Date issued
2012-08Department
Massachusetts Institute of Technology. Department of Physics; Massachusetts Institute of Technology. Laboratory for Nuclear Science; Massachusetts Institute of Technology. School of ScienceJournal
Journal of High Energy Physics
Publisher
Springer-Verlag
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Search for Leptonic Decays of W′ Bosons in Pp Collisions at √s = 7 TeV.” J. High Energ. Phys. 2012, no. 8 (August 2012). © CERN, for the benefit of the CMS collaboration
Version: Final published version
ISSN
1029-8479
1126-6708