2026-10-04T13:22:56Zhttps://elekpub.bib.uni-wuppertal.de/oai/

oai:elekpub.bib.uni-wuppertal.de:75712752024-06-19T11:00:05ZubwhsoaDoctoralThesis

vls/2603noah-balancer_mdapi1elekpub.bib.uni-wuppertal.devdMeasurement of t-channel single top-quark production in proton-proton collisions at a center-of-mass energy of 13 TeV using the full ATLAS Run 2 datasetReidelstürz, Joshua1996-VerfasserautWagner, Wolfgang1971-Akademischer BetreuerdgsBrock, Ian C.Akademischer BetreuerdgsLützenkirchen-Hecht, Dirk1964-Akademischer BetreuerdgsKnechtli, Francesco1972-Akademischer BetreuerdgsBergische Universität WuppertalGrad-verleihende InstitutiondggtextthesisTextHochschulschriftthesisdoctoralThesisgwXA-DEWuppertalFebruary 20242024single unitengelectronic resourceremotetext/htmltext/html1 Online-Ressource (g, 158 Seiten) : Illustrationen, DiagrammeComputerOnline-RessourceThis dissertation presents the measurement of the t-channel production of single top quarks and antiquarks using the complete Run 2 dataset recorded by the ATLAS detector. The cross-section of the process is measured separately for top quark and top antiquark production. Additionally, the ratio of these cross-sections, denoted as R_t, is also determined. The methodology involves a cut-based selection, a neural network for signal separation, and a binned maximum likelihood fit. The full Run 2 dataset from the ATLAS detector encompasses an integrated luminosity of 140 fb -1 from proton-proton collisions at a center-of-mass energy of 13 TeV. The total cross-sections are measured to be 137 +8 -8 pb for top-quark production and 84 +6 -5 pb for top-antiquark production. The combined cross-section is determined to be 221 +13 -13 pb, and the cross-section ratio is R_t = 1.636 +0.036 -0.034. The measured cross-sections align well with the predictions made at the next-to-next-to-leading order in quantum chromodynamics. The measured total cross-section is further used to derive a constraint on the CKM matrix element |V_{tb}| > 0.95 at the 95% confidence level.Joshua ReidelstürzTag der Verteidigung: 22.05.2024Bergische Universität Wuppertal, Dissertation, 2024Wuppertal539530urn:nbn:de:hbz:468-2-241210.25926/BUW/0-36999374150310806441Measurement of t-channel single top-quark production in proton-proton collisions at a center-of-mass energy of 13 TeV using the full ATLAS Run 2 datasetReidelstürz, Joshua, 1996-Druck-AusgabeHT030770644http://dx.doi.org/10.25926/BUW/0-369https://nbn-resolving.org/urn:nbn:de:hbz:468-2-2412Open AccessRS INC 1.02024-05-22oaDoctoralThesispublicrda24061720251111100816.0CT009000254s2w-hsswupubwgerUBW:C:C.02UBW:C https://elekpub.bib.uni-wuppertal.de//domainresource/static/graphics/connectors/viewerLogo.gifWuppertal : Bergische Universität Wuppertalreserved https://ub-wuppertal.digibib.net/search/katalog/record/(DE-605)urn%3Anbn%3Ade%3Ahbz%3A468-2-2412 https://elekpub.bib.uni-wuppertal.de/id/7571275 https://elekpub.bib.uni-wuppertal.de/i3f/v20/7571275/manifest https://elekpub.bib.uni-wuppertal.de/proto_ftsearch/7571275