Electroweak production of two jets in association with a Z boson in proton–proton collisions at √s = 13 TeV
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10052_2018_Article_6049.pdf
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Author(s)
Sirunyan, A. M
Tumasyan, A.
Adam, W.
Ambrogi, F.
Asilar, E.
Bergauer, T.
Brandstetter, J.
Brondolin, E.
Dragicevic, M.
Erö, J.
Date Issued
July 2018
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer Berlin Heidelberg
Citation
Sirunyan, A. M. et al. "Electroweak production of two jets in association with a Z boson in proton–proton collisions at √s = 13 TeV." European Physical Journal C 2018, 78 (July 2018): 589 © 2018 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
A measurement of the electroweak (EW) production of two jets in association with a Z boson in proton-proton collisions at √s = 13 TeV is presented, based on data recorded in 2016 by the CMS experiment at the LHC corresponding to an integrated luminosity of 35.9⁻¹. The measurement is performed in the ℓℓjj final state with ℓ including electrons and muons, and the jets j corresponding to the quarks produced in the hard interaction. The measured cross section in a kinematic region defined by invariant masses m[subscript u] > 50 GeV, m[subscript jj] >120 GeV, and transverse momenta p[subscript Tj] > 25 GeV is σ[subscript EW](ℓℓjj) = 534 ± 20(stat) ± 57(syst) fb, in agreement with leading-order standard model predictions. The final state is also used to perform a search for anomalous trilinear gauge couplings. No evidence is found and limits on anomalous trilinear gauge couplings associated with dimension-six operators are given in the framework of an effective field theory. The corresponding 95% confidence level intervals are -2.6 < c[subscript WWW]/ Λ² < 2.6 TeV⁻² and -8.4 < c [subscript W] / Λ² < 10.1 TeV⁻². The additional jet activity of events in a signal-enriched region is also studied, and the measurements are in agreement with predictions.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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DOI of Published Version
https://doi.org/10.1140/epjc/s10052-018-6049-9
