Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/4997
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dc.contributor.authorAad, G.-
dc.contributor.authorAbbott, B.-
dc.contributor.authorAbdallah, J.-
dc.contributor.authorKhalek, S. Abdel-
dc.contributor.authorAbdelalim, A. A.-
dc.contributor.authorAbdinov, O.-
dc.contributor.authorThe ATLAS Collaboration-
dc.contributor.authorSultansoy, Saleh-
dc.date.accessioned2021-09-11T14:21:07Z-
dc.date.available2021-09-11T14:21:07Z-
dc.date.issued2012en_US
dc.identifier.issn0370-2693-
dc.identifier.issn1873-2445-
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2012.08.011-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/4997-
dc.description.abstractThis Letter presents evidence for the associated production of a W boson and a top quark using 2.05 fb(-1) of pp collision data at root s = 7 TeV accumulated with the ATLAS detector at the LHC. The analysis is based on the selection of the dileptonic final states with events featuring two isolated leptons, electron or muon, with significant transverse missing momentum and at least one jet. An approach based on boosted decision trees has been developed to improve the discrimination of single top-quark Wt events from background. A template fit to the final classifier distributions is performed to determine the cross-section. The result is incompatible with the background-only hypothesis at the 3.3 sigma level, the expected sensitivity assuming the Standard Model production rate being 3.4 sigma. The corresponding cross-section is determined and found to be sigma(wt) = 16.8 +/- 2.9 (stat) +/- 4.9 (syst) pb, in good agreement with the Standard Model expectation. From this result the CKM matrix element vertical bar V-tb vertical bar = 1.03(-0.19)(+0.16) is derived assuming that the Wt production through vertical bar V-ts vertical bar and vertical bar V-td vertical bar is small. (C) 2012 CERN. Published by Elsevier B.V All rights reserved.en_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Letters Ben_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectATLASen_US
dc.subjectTop quarken_US
dc.subjectW plus ten_US
dc.subjectSingle top-quarken_US
dc.titleEvidence for the Associated Production of a W Boson and a Top Quark in Atlas at Root S=7 Teven_US
dc.typeArticleen_US
dc.departmentFaculties, Faculty of Engineering, Department of Material Science and Nanotechnology Engineeringen_US
dc.departmentFakülteler, Mühendislik Fakültesi, Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümütr_TR
dc.identifier.volume716en_US
dc.identifier.issue1en_US
dc.identifier.startpage142en_US
dc.identifier.endpage159en_US
dc.authorid0000-0003-3915-3170-
dc.authorid0000-0001-5821-7067-
dc.authorid0000-0001-7470-9301-
dc.authorid0000-0003-1277-2596-
dc.authorid0000-0002-3368-3413-
dc.authorid0000-0002-6460-8694-
dc.identifier.wosWOS:000309621400007en_US
dc.identifier.scopus2-s2.0-85042037870en_US
dc.institutionauthorSultansoy, Saleh-
dc.identifier.doi10.1016/j.physletb.2012.08.011-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ1-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
crisitem.author.dept02.6. Department of Material Science and Nanotechnology Engineering-
Appears in Collections:Malzeme Bilimi ve Nanoteknoloji Mühendisliği Bölümü / Department of Material Science & Nanotechnology Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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