Measurements of the Associated Production of a Z Boson and b Jets in pp Collisions at √s = 8 TeV
Name
Khachatryan2017_Article_MeasurementsOfTheAssociatedPro.pdf
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2.69 MB
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Author(s)
CMS Collaboration
Apyan, Aram
Barbieri, Richard Alexander
Baty, Austin Alan
Bi, Ran
Bierwagen, Katharina
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Demiragli, Zeynep
Date Issued
November 2017
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer-Verlag
Citation
Khachatryan, V., et al. “Measurements of the Associated Production of a Z Boson and b Jets in pp Collisions at √s = 8 TeV.” The European Physical Journal C 77, 11 (November 2017) © 2017 CERN for the benefit of the CMS collaboration
Version
Final published version
Abstract
Measurements of the associated production of a Z boson with at least one jet originating from a b quark in proton–proton collisions at s=8TeV are presented. Differential cross sections are measured with data collected by the CMS experiment corresponding to an integrated luminosity of 19.8fb-1. Z bosons are reconstructed through their decays to electrons and muons. Cross sections are measured as a function of observables characterizing the kinematics of the b jet and the Z boson. Ratios of differential cross sections for the associated production with at least one b jet to the associated production with any jet are also presented. The production of a Z boson with at least two b jets is investigated, and differential cross sections are measured for the dijet system. Results are compared to theoretical predictions, testing two different flavour schemes for the choice of initial-state partons.
MIT Department
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
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Creative Commons Attribution 4.0 International License
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DOI of Published Version
https://doi.org/10.1140/EPJC/S10052-017-5140-Y
