Rimoldi, Marco; Mullier, Geoffrey; Miucci, Antonio; Merlassino, Claudia; Haug, Sigve; Weber, Michael; Meloni, Federico; Beck, Hans Peter; Ereditato, Antonio (2018). Direct top-quark decay width measurement in the tt̅ lepton+jets channel at √s = 8 TeV with the ATLAS experiment. European physical journal. C - particles and fields, 78(2) EDP Sciences 10.1140/epjc/s10052-018-5595-5
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This paper presents a direct measurement of the decay width of the top quark using tt̅ 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.) +0.79 −0.68 (syst.) GeV for a top-quark mass of 172.5 GeV, is consistent with the prediction of the Standard Model.
Item Type: |
Journal Article (Original Article) |
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Division/Institute: |
08 Faculty of Science > Physics Institute > Laboratory for High Energy Physics (LHEP) |
UniBE Contributor: |
Haug, Sigve, Weber, Michele, Beck, Hans Peter |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1434-6044 |
Publisher: |
EDP Sciences |
Language: |
English |
Submitter: |
BORIS Import LHEP |
Date Deposited: |
27 Jun 2019 16:23 |
Last Modified: |
05 Dec 2022 15:27 |
Publisher DOI: |
10.1140/epjc/s10052-018-5595-5 |
Additional Information: |
Kollaboration - Es sind nur die Berner Autoren erwaehnt |
BORIS DOI: |
10.7892/boris.129112 |
URI: |
https://boris.unibe.ch/id/eprint/129112 |
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