Direct top-quark decay width measurement in the tt¯ lepton+jets channel at √s=8TeV with the ATLAS experiment
(2018) In European Physical Journal C 78(2).- 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. © 2018, CERN for the benefit of the ATLAS collaboration.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/19f69393-7681-4356-a9c9-9ac6da7f5b20
- author
- author collaboration
- organization
- publishing date
- 2018
- type
- Contribution to journal
- publication status
- published
- subject
- in
- European Physical Journal C
- volume
- 78
- issue
- 2
- article number
- 129
- publisher
- Springer
- external identifiers
-
- scopus:85042217176
- pmid:31265010
- ISSN
- 1434-6044
- DOI
- 10.1140/epjc/s10052-018-5595-5
- language
- English
- LU publication?
- yes
- additional info
- Export Date: 7 March 2018
- id
- 19f69393-7681-4356-a9c9-9ac6da7f5b20
- date added to LUP
- 2018-03-07 09:43:26
- date last changed
- 2023-04-08 08:31:46
@article{19f69393-7681-4356-a9c9-9ac6da7f5b20, 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. © 2018, CERN for the benefit of the ATLAS collaboration.}}, author = {{Aaboud, M and Aad, G and Abbott, B. and Abdinov, O and Abeloos, B and Abidi, S. H. and Åkesson, Torsten and Bocchetta, Simona and Doglioni, Caterina and Hedberg, Vincent and Jarlskog, Göran and Kalderon, Charles and Kellermann, Edgar and Konya, Balazs and Lytken, Else and Mankinen, Katja and Mjörnmark, Ulf and Pöttgen, Ruth and Poulsen, Trine and Smirnova, Oxana and Viazlo, Oleksandr}}, issn = {{1434-6044}}, language = {{eng}}, number = {{2}}, publisher = {{Springer}}, series = {{European Physical Journal C}}, title = {{Direct top-quark decay width measurement in the tt¯ lepton+jets channel at √s=8TeV with the ATLAS experiment}}, url = {{http://dx.doi.org/10.1140/epjc/s10052-018-5595-5}}, doi = {{10.1140/epjc/s10052-018-5595-5}}, volume = {{78}}, year = {{2018}}, }