Aaboud, M;
Aad, G;
Abbott, B;
Abdallah, J;
Abdinov, O;
Abeloos, B;
Aben, R;
... Zwalinski, L; + view all
(2017)
Measurement of the t ¯t Z and t ¯tW production cross sections in
multilepton final states using 3.2 fb−1 of pp collisions at
√
s = 13
TeV with the ATLAS detector.
European Physical Journal C
, 77
(1)
, Article 40. 10.1140/epjc/s10052-016-4574-y.
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Abstract
A measurement of the tt ¯ Z tt¯Z and tt ¯ W tt¯W production cross sections in final states with either two same-charge muons, or three or four leptons (electrons or muons) is presented. The analysis uses a data sample of proton–proton collisions at s √ =13 s=13 TeV recorded with the ATLAS detector at the Large Hadron Collider in 2015, corresponding to a total integrated luminosity of 3.2 fb −1 −1 . The inclusive cross sections are extracted using likelihood fits to signal and control regions, resulting in σ tt ¯ Z =0.9±0.3 σtt¯Z=0.9±0.3 pb and σ tt ¯ W =1.5±0.8 σtt¯W=1.5±0.8 pb, in agreement with the Standard Model predictions.
| Type: | Article |
|---|---|
| Title: | Measurement of the t ¯t Z and t ¯tW production cross sections in multilepton final states using 3.2 fb−1 of pp collisions at √ s = 13 TeV with the ATLAS detector |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-016-4574-y |
| Publisher version: | http://dx.doi.org/10.1140/epjc/s10052-016-4574-y |
| Language: | English |
| Additional information: | Copyright © CERN for the benefit of the ATLAS collaboration 2017. Open Access: This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1523445 |
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