Aaboud, M;
Aad, G;
Abbott, B;
Abdinov, O;
Abeloos, B;
Abidi, SH;
AbouZeid, OS;
... Aperio Bella, L; + view all
(2018)
Direct top-quark decay width measurement in the tt
¯ lepton+jets
channel at √s = 8 TeV with the ATLAS experiment.
European Physical Journal C
, 78
(2)
10.1140/epjc/s10052-018-5595-5.
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Abstract
This paper presents a direct measurement of the decay width of the top quark using tt¯ events in the lepton+jets final state. The data sample was collected by the ATLAS detector at the LHC in proton–proton collisions at a centre-of-mass energy of 8 TeV and corresponds to an integrated luminosity of 20.2 fb - 1 . The decay width of the top quark is measured using a template fit to distributions of kinematic observables associated with the hadronically and semileptonically decaying top quarks. The result, Γt=1.76±0.33(stat.)-0.68+0.79(syst.)GeV for a top-quark mass of 172.5 GeV, is consistent with the prediction of the Standard Model.
| Type: | Article |
|---|---|
| Title: | Direct top-quark decay width measurement in the tt ¯ lepton+jets channel at √s = 8 TeV with the ATLAS experiment |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-018-5595-5 |
| Publisher version: | http://dx.doi.org/10.1140/epjc/s10052-018-5595-5 |
| Language: | English |
| Additional information: | © CERN for the benefit of the ATLAS collaboration 2018 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.ucl.ac.uk/id/eprint/10044332 |
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