Study of the Underlying Event in Top Quark Pair Production in pp Collisions at 13 TeV
Name
Sirunyan2019_Article_StudyOfTheUnderlyingEventInTop.pdf
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2.11 MB
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Checksum (MD5)
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Date Issued
February 2019
Journal
European Physical Journal C: Particles and Fields
Publisher
Springer-Verlag
Citation
Sirunyan, A. M. et al. “Study of the Underlying Event in Top Quark Pair Production in pp Collisions at 13 TeV.” The European Physical Journal C 79, 2 (February 2019): 123 © CERN for the benefit of the CMS collaboration 2019
Version
Final published version
Abstract
Measurements of normalized differential cross sections as functions of the multiplicity and kinematic variables of charged-particle tracks from the underlying event in top quark and antiquark pair production are presented. The measurements are performed in proton-proton collisions at a center-of-mass energy of 13 TeV, and are based on data collected by the CMS experiment at the LHC in 2016 corresponding to an integrated luminosity of 35.9 fb⁻¹. Events containing one electron, one muon, and two jets from the hadronization and fragmentation of b quarks are used. These measurements characterize, for the first time, properties of the underlying event in top quark pair production and show no deviation from the universality hypothesis at energy scales typically above twice the top quark mass.
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
Terms of Use
Creative Commons Attribution 4.0 International license
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1140/epjc/s10052-019-6620-z
