Measurement of the tt¯Production Cross Section Using Events with One Lepton and at Least One Jet in Pp Collisions at √s = 13 TeV
Name
Sirunyan2017_Article_MeasurementOfTheTtMathrmTOverl.pdf
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Author(s)
CMS Collaboration
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Apyan, Aram
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bi, Ran
Bierwagen, Katharina
Brandt, Stephanie Akemi
Date Issued
September 2017
Journal
Journal of High Energy Physics
Publisher
Springer
Citation
Sirunyan, A. M. et al. “Measurement of the tt¯Production Cross Section Using Events with One Lepton and at Least One Jet in Pp Collisions at √s = 13 TeV.” Journal of High Energy Physics 2017, 9 (September 2017): 51 © 2017 The Author(s)
Version
Final published version
Abstract
A measurement of the tt ¯ production cross section at √s = 13 TeV is presented using proton-proton collisions, corresponding to an integrated luminosity of 2.2 fb⁻¹, collected with the CMS detector at the LHC. Final states with one isolated charged lepton (electron or muon) and at least one jet are selected and categorized according to the accompanying jet multiplicity. From a likelihood fit to the invariant mass distribution of the isolated lepton and a jet identified as coming from the hadronization of a bottom quark, the cross section is measured to be σtt¯=888 ± 2,(stat)₋₂₈⁺²⁶(syst)±20(lumi) pb, in agreement with the standard model prediction. Using the expected dependence of the cross section on the pole mass of the top quark (mt), the value of mtis found to be 170.6 ± 2.7 GeV. Keywords: Hadron-Hadron scattering (experiments); Top physics
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/10.1007/JHEP09(2017)051
