Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/115268
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Type: Journal article
Title: Search for flavour-changing neutral current top-quark decays to qZ in pp collision data collected with the ATLAS detector at √s = 8 TeV
Other Titles: Search for flavour-changing neutral current top-quark decays to qZ in pp collision data collected with the ATLAS detector at root s = 8 TeV
Author: Aad, G.
Abbott, B.
Abdallah, J.
Abdinov, O.
Aben, R.
Abolins, M.
AbouZeid, O.
Abramowicz, H.
Abreu, H.
Abreu, R.
Abulaiti, Y.
Acharya, B.
Adamczyk, L.
Adams, D.
Adelman, J.
Adomeit, S.
Adye, T.
Affolder, A.
Agatonovic-Jovin, T.
Agricola, J.
et al.
Citation: European Physical Journal C, 2016; 76(1):1-24
Publisher: Springer
Issue Date: 2016
ISSN: 1434-6044
1434-6052
Statement of
Responsibility: 
G. Aad ... P. Jackson ... L. Lee ... A. Petridis ... N. Soni ... M.J. White ... [et al.] (The ATLAS Collaboration)
Abstract: A search for the flavour-changing neutral-current decay t→qZ is presented. Data collected by the ATLAS detector during 2012 from proton–proton collisions at the Large Hadron Collider at a centre-of-mass energy of s√ = 8 TeV, corresponding to an integrated luminosity of 20.3 fb⁻¹, are analysed. Top-quark pair-production events with one top quark decaying through the t→qZ (q=u, c) channel and the other through the dominant Standard Model mode t→bW are considered as signal. Only the decays of the Z boson to charged leptons and leptonic W boson decays are used. No evidence for a signal is found and an observed (expected) upper limit on the t→qZ branching ratio of 7×10⁻⁴ (8×10⁻⁴) is set at the 95% confidence level
Keywords: ATLAS Collaboration
Rights: © CERN for the benefit of the ATLAS collaboration 2016. This article is published with open access at Springerlink.com
RMID: 0030041897
DOI: 10.1140/epjc/s10052-015-3851-5
Appears in Collections:Physics publications

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