Aaboud, MY;
Aad, G;
Abbott, B;
Abdinov, O;
Abeloos, B;
Abhayasinghe, DK;
Abidi, SH;
... Zwalinski, L; + view all
(2019)
Measurement of the top quark mass in the t(t)over-bar -> lepton plus jets channel from root s=8 TeV ATLAS data and combination with previous results.
The European Physical Journal C
, 79
, Article 290. 10.1140/epjc/s10052-019-6757-9.
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Abstract
The top quark mass is measured using a template method in the tt ¯ → lepton + jets channel (lepton is e or μ) using ATLAS data recorded in 2012 at the LHC. The data were taken at a proton–proton centre-of-mass energy of √s = 8 TeV and correspond to an integrated luminosity of 20.2 fb−1. The tt ¯ → lepton + jets channel is characterized by the presence of a charged lepton, a neutrino and four jets, two of which originate from bottom quarks (b). Exploiting a three-dimensional template technique, the top quark mass is determined together with a global jet energy scale factor and a relative b-to-light-jet energy scale factor. The mass of the top quark is measured to be mtop = 172.08 ± 0.39 (stat) ± 0.82 (syst) GeV. A combination with previous ATLAS mtop measurements gives mtop = 172.69 ± 0.25 (stat) ± 0.41 (syst) GeV.
| Type: | Article |
|---|---|
| Title: | Measurement of the top quark mass in the t(t)over-bar -> lepton plus jets channel from root s=8 TeV ATLAS data and combination with previous results |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1140/epjc/s10052-019-6757-9 |
| Publisher version: | https://doi.org/10.1140/epjc/s10052-019-6757-9 |
| Language: | English |
| Additional information: | 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/10073320 |
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