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Top-quark pair production in association with a \\(Z\\) boson in the 4\\(\\ell\\) channel with the ATLAS experiment
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Top-quark pair production in association with a \\(Z\\) boson in the 4\\(\\ell\\) channel with the ATLAS experiment
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Paper
Top-quark pair production in association with a \\(Z\\) boson in the 4\\(\\ell\\) channel with the ATLAS experiment
2019
Overview
The cross section of the \\(t\\bar{t}Z\\)~and \\(t\\bar{t}W\\)~processes are measured in a simultaneous fit using 36.1 \\(\\text{fb}^{-1}\\) of of proton--proton collisions at a centre-of-mass energy of \\(\\sqrt{s}=13\\) TeV recorded by the ATLAS experiment at the LHC. In addition, a fit is performed in the 4\\(\\ell\\) channel only, resulting in a cross section of \\(\\sigma_{t\\bar{t}Z} = 1.07 \\pm 0.26 \\,\\text{pb}\\). This result is consistent with the combined fit and agrees with the prediction by the Standard Model.
Publisher
Cornell University Library, arXiv.org
Subject
