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dc.contributor.authorCMS Collaboration
Adair, A.
Akgun, B.
Ecklund, K.M.
Geurts, F.J.M.
Li, W.
Michlin, B.
Padley, B.P.
Redjimi, R.
Roberts, J.
Zabel, J.
dc.date.accessioned 2015-04-20T15:44:18Z
dc.date.available 2015-04-20T15:44:18Z
dc.date.issued 2015
dc.identifier.citation CMS Collaboration, Adair, A., Akgun, B., et al.. "Measurement of the W boson helicity in events with a single reconstructed top quark in pp collisions at √s=8 TeV." Journal of High Energy Physics, (2015) http://dx.doi.org/10.1007/JHEP01(2015)053.
dc.identifier.urihttps://hdl.handle.net/1911/79484
dc.description.abstract A measurement of the W boson helicity is presented, where the W boson originates from the decay of a top quark produced in pp collisions. The event selection, optimized for reconstructing a single top quark in the final state, requires exactly one isolated lepton (muon or electron) and exactly two jets, one of which is likely to originate from the hadronization of a bottom quark. The analysis is performed using data recorded at a center-of-mass energy of 8 TeV with the CMS detector at the CERN LHC in 2012. The data sample corresponds to an integrated luminosity of 19.7 fb−1. The measured helicity fractions are F L = 0.298 ± 0.028 (stat) ± 0.032(syst), F 0 = 0.720 ± 0.039 (stat) ± 0.037(syst), and F R = −0.018 ± 0.019 (stat) ± 0.011(syst). These results are used to set limits on the real part of the tWb anomalous couplings, g L and g R.
dc.language.iso eng
dc.rights This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.title Measurement of the W boson helicity in events with a single reconstructed top quark in pp collisions at √s=8 TeV
dc.type Journal article
dc.citation.journalTitle Journal of High Energy Physics
dc.subject.keywordelectroweak interaction
Hadron-Hadron Scattering
dc.contributor.publisher Springer
dc.type.dcmi Text
dc.identifier.doihttp://dx.doi.org/10.1007/JHEP01(2015)053
dc.type.publication publisher version


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This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.
Except where otherwise noted, this item's license is described as This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.