Aaboud, M;
Aad, G;
Abbott, B;
Abdinov, O;
Abeloos, B;
Abidi, SH;
Abouzeid, OS;
... Araujo Ferraz, V; + view all
(2018)
Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at s√=7s=7 and 8 TeV.
Journal of High Energy Physics
, 2018
(4)
, Article 33. 10.1007/JHEP04(2018)033.
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Abstract
This paper presents combinations of inclusive and differential measurements of the charge asymmetry (AC) in top quark pair (tt¯) 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−1 for each experiment, respectively. The resulting combined LHC measurements of the inclusive charge asymmetry are A C CHC7 = 0.005 ± 0.007 (stat) ± 0.006(syst) at 7 TeV and A C 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 tt¯tt¯ system at 8 TeV, are consistent with the respective standard model predictions.
| Type: | Article |
|---|---|
| Title: | Combination of inclusive and differential tt¯ charge asymmetry measurements using ATLAS and CMS data at s√=7s=7 and 8 TeV |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/JHEP04(2018)033 |
| Language: | English |
| Additional information: | © CERN, for the benefit of the ATLAS-CMS Collaboration. This article is distributed under the terms of the Creative Commons Attribution License (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited. |
| Keywords: | Hadron-Hadron scattering (experiments), Top physics |
| 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.ucl.ac.uk/id/eprint/10051425 |
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