Measurement of the Wγ and Zγ< Inclusive Cross Sections in pp Collisions at √s = 7 TeV and Limits on Anomalous Triple Gauge Boson Couplings
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Chatrchyan-2014-Measurement of the W.pdf
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Author(s)
Apyan, Aram
Busza, Wit
Cali, Ivan Amos
Chan, M.
Di Matteo, Leonardo
Gomez-Ceballos, Guillelmo
Goncharov, Maxim
Gulhan, Doga Can
Kim, Y.
Klute, Markus
Date Issued
May 2014
Journal
Physical Review D
Publisher
American Physical Society
Citation
Chatrchyan, S., V. Khachatryan, A. M. Sirunyan, A. Tumasyan, W. Adam, T. Bergauer, M. Dragicevic, et al. “Measurement of the Wγ and Zγ Inclusive Cross Sections in pp Collisions at √s = 7 TeV and Limits on Anomalous Triple Gauge Boson Couplings.” Phys. Rev. D 89, no. 9 (May 2014). © 2014 CERN, for the CMS Collaboration
Version
Final published version
Abstract
Measurements of Wγ and Zγ production in proton-proton collisions at √s = 7 TeV are used to extract limits on anomalous triple gauge couplings. The results are based on data recorded by the CMS experiment at the LHC that correspond to an integrated luminosity of 5.0 fb[superscript −1]. The cross sections are measured for photon transverse momenta p[γ over T] > 15 GeV, and for separations between photons and final-state charged leptons in the pseudorapidity-azimuthal plane of ΔR(ℓ,γ) > 0.7 in ℓνγ and ℓℓγ final states, where ℓ refers either to an electron or a muon. A dilepton invariant mass requirement of mℓℓ > 50 GeV is imposed for the Zγ process. No deviations are observed relative to predictions from the standard model, and limits are set on anomalous WWγ, ZZγ, and Zγγ triple gauge couplings.
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/10.1103/PhysRevD.89.092005
