Measurement of Jet Substructure Observables in tt¯Events from Proton-Proton Collisions at √s = 13 TeV
Name
PhysRevD.98.092014.pdf
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1.54 MB
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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
November 2018
Journal
Physical Review D
Publisher
American Institute of Physics (AIP)
Citation
Sirunyan, A. M. et al. “Measurement of Jet Substructure Observables in
tt¯Events from Proton-Proton Collisions at √s = 13 TeV.” Physical Review D 98, 9 (November 2018): 092014 © 2018 CERN, for the CMS Collaboration
Version
Final published version
Abstract
A measurement of jet substructure observables is presented using t¯t events in the lepton+jets channel from proton-proton collisions at √s=13 TeV recorded by the CMS experiment at the LHC, corresponding to an integrated luminosity of 35.9 fb⁻¹. Multiple jet substructure observables are measured for jets identified as bottom, light-quark, and gluon jets, as well as for inclusive jets (no flavor information). The results are unfolded to the particle level and compared to next-to-leading-order predictions from powheg interfaced with the parton shower generators pythia 8 and herwig 7, as well as from sherpa 2 and Dire 2. A value of the strong coupling at the Z boson mass, αS(mZ) = 0.115[superscript +0.015][subscript −0.013], is extracted from the substructure data at leading-order plus leading-log accuracy.
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
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DOI of Published Version
https://doi.org/10.1103/PhysRevD.98.092014
