Search for leptonic decays of W′ bosons in pp collisions at √s = 7 TeV
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CMS collab_Search for leptonic.pdf
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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
Date Issued
August 2012
Journal
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
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Massachusetts Institute of Technology. School of Science
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DOI of Published Version
https://doi.org/10.1007/JHEP08(2012)023
