Search for Flavour-Changing Neutral Current Top-Quark Decays to qZ in pp Collision Data Collected with the ATLAS Detector at √s̅ = 8 TeV

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dc.contributor.VIAF250674117 (Izen, JM)en_US
dc.contributor.VIAF250674117 (Izen, JM)
dc.contributor.authorAad, G.en_US
dc.contributor.authorAbbott, B.en_US
dc.contributor.authorAbdallah, J.en_US
dc.contributor.authorAbdinov, O.en_US
dc.contributor.authorAben, R.en_US
dc.contributor.authorAbolins, M.en_US
dc.contributor.authorAbouZeid, O. S.en_US
dc.contributor.authorIzen, Joseph M.en_US
dc.contributor.authorLeyton, Michaelen_US
dc.contributor.authorMeirose, Bernharden_US
dc.contributor.authorNamasivayam, Harisankaren_US
dc.contributor.authorReeves, Kendallen_US
dc.contributor.authorATLAS Collaborationen_US
dc.contributor.utdAuthorIzen, Joseph M.en_US
dc.contributor.utdAuthorLeyton, Michaelen_US
dc.contributor.utdAuthorMeirose, Bernharden_US
dc.contributor.utdAuthorNamasivayam, Harisankaren_US
dc.contributor.utdAuthorReeves, Kendallen_US
dc.date.accessioned2016-07-20T21:36:39Z
dc.date.available2016-07-20T21:36:39Z
dc.date.created2016-01-08en_US
dc.date.issued2016-01-08en_US
dc.description.abstractA 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 √s̅ = 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 x 10⁻⁴ (8 x 10⁻⁴) is set at the 95% confidence levelen_US
dc.identifier.bibliographicCitationAad, G., B. Abbott, J. Abdallah, O. Abdinov, et al. 2016. "Search for flavour-changing neutral current top-quark decays to qZ in pp collision data collected with the ATLAS detector at √s̅ = 8 TeV." European Physical Journal C 76(1): 1-24.en_US
dc.identifier.issn1434-6044en_US
dc.identifier.issue1en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/4945
dc.identifier.volume76en_US
dc.language.isoenen_US
dc.publisherSpringer New York LLCen_US
dc.relation.urihttp://dx.doi.org/10.1140/epjc/s10052-015-3851-5
dc.rightsCC BY 4.0 (Attribution)en_US
dc.rights©2016 CERN, for the ATLAS Collaborationen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_US
dc.sourceEuropean Physical Journal C
dc.subjectZ bosonsen_US
dc.subjectJets (Nuclear physics)en_US
dc.subjectW bosonsen_US
dc.subjectLeptons (Nuclear physics)en_US
dc.subjectTop Quarksen_US
dc.subjectTransverse momentumen_US
dc.titleSearch for Flavour-Changing Neutral Current Top-Quark Decays to qZ in pp Collision Data Collected with the ATLAS Detector at √s̅ = 8 TeVen_US
dc.type.genreArticleen_US

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Izen, Joseph M.
NSM Staff-Student Research