Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/10389
Full metadata record
DC FieldValueLanguage
dc.contributor.authorAad, G.-
dc.contributor.authorAbbott, B.-
dc.contributor.authorAbbott, D.C.-
dc.contributor.authorAbed, Abud, A.-
dc.contributor.authorAbeling, K.-
dc.contributor.authorAbhayasinghe, D.K.-
dc.contributor.authorAbidi, S.H.-
dc.date.accessioned2023-04-16T10:02:12Z-
dc.date.available2023-04-16T10:02:12Z-
dc.date.issued2022-
dc.identifier.issn1029-8479-
dc.identifier.urihttps://doi.org/10.1007/JHEP11(2022)040-
dc.identifier.urihttps://hdl.handle.net/20.500.11851/10389-
dc.description.abstractA simultaneous measurement of the three components of the top-quark and top-antiquark polarisation vectors in t-channel single-top-quark production is presented. This analysis is based on data from proton–proton collisions at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 139 fb−1, collected with the ATLAS detector at the LHC. Selected events contain exactly one isolated electron or muon, large missing transverse momentum and exactly two jets, one being b-tagged. Stringent selection requirements are applied to discriminate t-channel single-top-quark events from the background contributions. The top-quark and top-antiquark polarisation vectors are measured from the distributions of the direction cosines of the charged-lepton momentum in the top-quark rest frame. The three components of the polarisation vector for the selected top-quark event sample are Px′ = 0.01 ± 0.18, Py′ = −0.029 ± 0.027, Pz′ = 0.91 ± 0.10 and for the top-antiquark event sample they are Px′ = −0.02 ± 0.20, Py′ = −0.007 ± 0.051, Pz′ = 0.79 ± 0.16. Normalised differential cross-sections corrected to a fiducial region at the stable-particle level are presented as a function of the charged-lepton angles for top-quark and top-antiquark events inclusively and separately. These measurements are in agreement with Standard Model predictions. The angular differential cross-sections are used to derive bounds on the complex Wilson coefficient of the dimension-six OtW operator in the framework of an effective field theory. The obtained bounds are CtW ∈ [−0.9, 1.4] and CitW ∈ [−0.8, 0.2], both at 95% confidence level. [Figure not available: see fulltext.]. © 2022, The Author(s).en_US
dc.language.isoenen_US
dc.publisherSpringer Science and Business Media Deutschland GmbHen_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron Scatteringen_US
dc.subjectTop Physicsen_US
dc.titleMeasurement of the Polarisation of Single Top Quarks and Antiquarks Produced in the T-Channel at √s = 13 Tev and Bounds on the Twb Dipole Operator From the Atlas Experimenten_US
dc.typeArticleen_US
dc.departmentTOBB ETÜen_US
dc.identifier.volume2022en_US
dc.identifier.issue11en_US
dc.identifier.wosWOS:000885306200001en_US
dc.identifier.scopus2-s2.0-85144205100en_US
dc.institutionauthor-
dc.identifier.doi10.1007/JHEP11(2022)040-
dc.authorscopusid26326745400-
dc.authorscopusid35226946900-
dc.authorscopusid57208306618-
dc.authorscopusid57208907456-
dc.authorscopusid57210132793-
dc.authorscopusid57193183451-
dc.authorscopusid56536227400-
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.scopusqualityQ2-
item.openairetypeArticle-
item.languageiso639-1en-
item.grantfulltextnone-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
Show simple item record



CORE Recommender

SCOPUSTM   
Citations

1
checked on Dec 21, 2024

WEB OF SCIENCETM
Citations

4
checked on Aug 31, 2024

Page view(s)

70
checked on Dec 23, 2024

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.