Direct top-quark decay width measurement in the $t\overline{t}$ lepton+jets channel at $\sqrt{s}=8~\text {TeV}$ with the ATLAS experiment [electronic resource].
- Published:
- Washington, D.C. : United States. Dept. of Energy. Office of Science, 2018.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy - Physical Description:
- Article numbers 129 : digital, PDF file
- Additional Creators:
- Lawrence Berkeley National Laboratory, United States. Department of Energy. Office of Science, and United States. Department of Energy. Office of Scientific and Technical Information
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- Restrictions on Access:
- Free-to-read Unrestricted online access
- Summary:
- Here, this article presents a direct measurement of the decay width of the top quark using $t\bar{t}$ 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.) $+0.79\atop{-0.68}$ (syst.) GeV for a top-quark mass of 172.5 GeV, is consistent with the prediction of the Standard Model.
- Report Numbers:
- E 1.99:1434013
- Subject(s):
- Note:
- Published through SciTech Connect.
02/15/2018.
"ark:/13030/qt4w285458"
European Physical Journal. C, Particles and Fields 78 2 ISSN 1434-6044 AM
Aaboud, M.; Aad, G.; Abbott, B.; Abdinov, O.; Abeloos, B.; Abidi, S.; AbouZeid, O.; Abraham, N.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B.; Adachi, S.; Adamczyk, L.; Adelman, J.; Adersberger, M.; Adye, T.; Affolder, A.; Afik, Y.; Agatonovic-Jovin, T.; Agheorghiesei, C.; Aguilar-Saavedra, J.; Ahlen, S.; Ahmadov, F.; et al. - Funding Information:
- AC02-05CH11231
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