Combination of inclusive and differential t[¯ over t] charge asymmetry measurements using ATLAS and CMS data at √s=7 and 8 TeV
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Aaboud2018_Article_CombinationOfInclusiveAndDiffe.pdf
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Author(s)
Abercrombie, Daniel Robert
Allen, Brandon Leigh
Azzolini, Virginia
Barbieri, Richard Alexander
Baty, Austin Alan
Bauer, Gerry P
Bi, Ran
Brandt, Stephanie Akemi
Busza, Wit
Cali, Ivan Amos
Date Issued
April 2018
Journal
Journal of High Energy Physics
Publisher
Springer Nature
Citation
The ATLAS collaboration, et al. “Combination of inclusive and differential t[¯ over t] charge asymmetry measurements using ATLAS and CMS data at √s=7 and 8 TeV.” Journal of High Energy Physics, vol. 2018, no. 4, Apr. 2018. © 2018 The Authors
Version
Final published version
Abstract
This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (t[¯ over t]) events with a lepton+jets signature by the ATLAS and CMS Collaborations, using data from LHC proton-proton collisions at centre-of-mass energies of 7 and 8 TeV. The data correspond to integrated luminosities of about 5 and 20 fb[superscript −1] for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are A[subscript C][superscript CHC7] = 0.005 ± 0.007 (stat) ± 0.006(syst) at 7 TeV and A[subscript C][superscript CHC8] = 0.0055 ± 0.0023 (stat) ± 0.0025 (syst) at 8 TeV. These values, as well as the combination of AC measurements as a function of the invariant mass of the t[¯ over t] system at 8 TeV, are consistent with the respective standard model predictions. Keywords: Hadron-Hadron scattering (experiments), Top physics
MIT Department
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/JHEP04(2018)033
