Aaboud, M;
Aad, G;
Abbott, B;
Abdallah, J;
Abdinov, O;
Abeloos, B;
Abidi, SH;
... Zwalinski, L; + view all
(2018)
Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector.
The European Physical Journal C
, 78
(2)
, Article 110. 10.1140/epjc/s10052-017-5475-4.
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Abstract
A measurement of the mass of the W boson is presented based on proton–proton collision data recorded in 2011 at a centre-of-mass energy of 7 TeV with the ATLAS detector at the LHC, and corresponding to 4.6 fb−14.6 fb−1 of integrated luminosity. The selected data sample consists of 7.8×1067.8×106 candidates in the W→μνW→μν channel and 5.9×1065.9×106 candidates in the W→eνW→eν channel. The W-boson mass is obtained from template fits to the reconstructed distributions of the charged lepton transverse momentum and of the W boson transverse mass in the electron and muon decay channels, yielding mW=80370=80370±7 (stat.)±11(exp. syst.)±14 (mod. syst.) MeV±19MeV, mW=80370±7 (stat.)±11(exp. syst.)±14 (mod. syst.) MeV=80370±19MeV, where the first uncertainty is statistical, the second corresponds to the experimental systematic uncertainty, and the third to the physics-modelling systematic uncertainty. A measurement of the mass difference between the W+W+ and W−W− bosons yields mW+−mW−=−29±28mW+−mW−=−29±28 MeV.
Type: | Article |
---|---|
Title: | Measurement of the W-boson mass in pp collisions at root s=7 TeV with the ATLAS detector |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1140/epjc/s10052-017-5475-4 |
Publisher version: | http://doi.org/10.1140/epjc/s10052-017-5475-4 |
Language: | English |
Additional information: | Copyright 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/1540616 |
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