Please use this identifier to cite or link to this item: https://hdl.handle.net/2440/132399
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Type: Journal article
Title: Measurement of the tt¯ production cross-section in the lepton+jets channel at √s=13 TeV with the ATLAS experiment
Other Titles: Measurement of the tt -bar production cross-section in the lepton+jets channel at root s=13 TeV with the ATLAS experiment
Author: Aad, G.
Abbott, B.
Abbott, D.C.
Abed Abud, A.
Abeling, K.
Abhayasinghe, D.K.
Abidi, S.H.
AbouZeid, O.S.
Abraham, N.L.
Abramowicz, H.
Abreu, H.
Abulaiti, Y.
Acharya, B.S.
Achkar, B.
Adam, L.
Adam Bourdarios, C.
Adamczyk, L.
Adamek, L.
Adelman, J.
Adersberger, M.
et al.
Citation: Physics Letters B: Nuclear Physics and Particle Physics, 2020; 810:135797-1-135797-22
Publisher: Elsevier
Issue Date: 2020
ISSN: 0370-2693
1873-2445
Statement of
Responsibility: 
G. Aad ... D. Duvnjak … P. Jackson … A.X.Y Kong … J.L. Oliver … A. Petridis ... A.S. Sharma ... M.J. White ... et al. (The ATLAS Collaboration)
Abstract: The top anti-top quark production cross-section is measured in the lepton+jets channel using proton–proton collision data at a centre-of-mass energy of √s=13 TeV collected with the ATLAS detector at the LHC. The dataset corresponds to an integrated luminosity of 139 fb−1. Events with exactly one charged lepton and four or more jets in the final state, with at least one jet containing b-hadrons, are used to determine the t ̄tproduction cross-section through a profile-likelihood fit. The inclusive cross-section is measured to be σinc=830±0.4(stat.)±36 (syst.)±14 (lumi.) pb with a relative uncertainty of 4.6%. The result is consistent with theoretical calculations at next-to-next-to-leading order in perturbative QCD. The fiducial t ̄tcross-section within the experimental acceptance is also measured
Rights: © 2020 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3
DOI: 10.1016/j.physletb.2020.135797
Published version: http://dx.doi.org/10.1016/j.physletb.2020.135797
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Physics publications

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