Measurement of the ttcross section and its ratio to the Z production cross ?section using pp collisions at ?s=13.6 TeV with the ATLAS detector

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dc.authoridBrahimi, Nihal/0000-0003-0992-3509
dc.authoridLopez Solis, Alvaro/0000-0002-0511-4766
dc.authoridGravila, Paul/0000-0002-0154-577X
dc.authoridKaryukhin, Andrey/0000-0001-9087-4315
dc.authoridLi, Yuanyuan/0000-0002-4955-1159
dc.authoridLeite, Marco/0000-0003-0392-3663
dc.authoridGustavino, Giuliano/0000-0002-5938-4921
dc.authorwosidFisher, Wade C/N-4491-2013
dc.authorwosidBrahimi, Nihal/HNJ-5325-2023
dc.authorwosidLopez Solis, Alvaro/KCL-5505-2024
dc.authorwosidLiu, Yan/KFQ-1417-2024
dc.authorwosidYamazaki, Yasunori/N-8018-2015
dc.authorwosidGravila, Paul/HLP-6245-2023
dc.authorwosidKaryukhin, Andrey/J-3904-2014
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbeling, K.
dc.contributor.authorAbicht, N. J.
dc.contributor.authorAbidi, S. H.
dc.contributor.authorAboulhorma, A.
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-05-19T14:50:31Z
dc.date.available2024-05-19T14:50:31Z
dc.date.issued2024
dc.departmentİstinye Üniversitesien_US
dc.description.abstractThe inclusive top-quark-pair production cross section rrtt and its ratio to the Z-boson production cross section have been measured in proton-proton collisions at root s = 13.6 TeV, using 29 fb-1 of data collected in 2022 with the ATLAS experiment at the Large Hadron Collider. Using events with an opposite-charge electron-muon pair and b-tagged jets, and assuming Standard Model decays, the top-quark-pair production cross section is measured to be rrtt = 850 +/- 3(stat.) +/- 18(syst.) +/- 20(lumi.) pb. The ratio of the ttand the Z-boson production cross sections is also measured, where the Z-boson contribution is determined for inclusive e+e- and mu+mu- events in a fiducial phase space. The relative uncertainty on the ratio is reduced compared to the ttcross section, thanks to the cancellation of several systematic uncertainties. The result for the ratio, Rtt/Z = 1.145 +/- 0.003(stat.) +/- 0.021(syst.) +/- 0.002(lumi.) is consistent with the Standard Model prediction using the PDF4LHC21 PDF set.en_US
dc.identifier.doi10.1016/j.physletb.2023.138376
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.scopus2-s2.0-85183680739en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org10.1016/j.physletb.2023.138376
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5735
dc.identifier.volume848en_US
dc.identifier.wosWOS:001136441300001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofPhysics Letters Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectPlus Plusen_US
dc.titleMeasurement of the ttcross section and its ratio to the Z production cross ?section using pp collisions at ?s=13.6 TeV with the ATLAS detectoren_US
dc.typeArticleen_US

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