Measurement of top-quark pair production in association with charm quarks in proton–proton collisions at s=13 TeV with the ATLAS detector

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dc.authorscopusidAndrew John Beddall / 57215802986
dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorscopusidSinem Şimşek / 57210344387
dc.authorscopusidZekeriya Uysal / 57210345628
dc.authorscopusidEmre Çelebi / 57193745716
dc.authorscopusidSertaç Öztürk / 56421488400
dc.authorscopusidMerve Şahinsoy / 56893808000
dc.authorscopusidAleksandr Petukhov / 58179897400
dc.authorwosidAndrew John Beddall / AAE-5820-2022
dc.authorwosidSertaç Öztürk / AGO-2476-2022
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.authorwosidSinem Şimşek / AGG-2640-2022
dc.authorwosidZekeriya Uysal / AAD-1226-2019
dc.authorwosidMerve Şahinsoy / LTU-3507-2024
dc.authorwosidAleksandr Petukhov / DWT-1712-2022
dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorBeddall, Andrew John
dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorÇelebi, Emre
dc.contributor.authorŞimşek, Sinem
dc.contributor.authorUysal, Zekeriya
dc.contributor.authorÖztürk, Sertaç
dc.contributor.authorŞahinsoy, Merve
dc.contributor.authorPetukhov, Aleksandr
dc.date.accessioned2025-04-17T08:42:32Z
dc.date.available2025-04-17T08:42:32Z
dc.date.issued2025
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractInclusive cross-sections for top-quark pair production in association with charm quarks are measured with proton–proton collision data at a center-of-mass energy of 13 TeV corresponding to an integrated luminosity of 140 fb−1, collected with the ATLAS experiment at the LHC between 2015 and 2018. The measurements are performed by requiring one or two charged leptons (electrons and muons), two b-tagged jets, and at least one additional jet in the final state. A custom flavor-tagging algorithm is employed for the simultaneous identification of b-jets and c-jets. In a fiducial phase space that replicates the acceptance of the ATLAS detector, the cross-sections for tt¯+≥2c and tt¯+1c production are measured to be 1.28−0.24+0.27pb and 6.4−0.9+1.0pb, respectively. The measurements are primarily limited by uncertainties in the modeling of inclusive tt¯ and tt¯+bb¯ production, in the calibration of the flavor-tagging algorithm, and by data statistics. Cross-section predictions from various tt¯ simulations are largely consistent with the measured cross-section values, though all underpredict the observed values by 0.5 to 2.0 standard deviations. In a phase-space volume without requirements on the tt¯ decay products and the jet multiplicity, the cross-section ratios of tt¯+≥2c and tt¯+1c to total tt¯+jets production are determined to be (1.23±0.25)% and (8.8±1.3)%.
dc.identifier.citationPrzygoda, W., & Volkotrub, Y. (2025). Measurement of top-quark pair production in association with charm quarks in proton–proton collisions at $\sqrt {s} $= 13 TeV with the ATLAS detector.
dc.identifier.doi10.1016/j.physletb.2024.139177
dc.identifier.endpage28
dc.identifier.issn0370-2693
dc.identifier.issn1873-2445
dc.identifier.scopus2-s2.0-85211336127
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2024.139177
dc.identifier.urihttps://hdl.handle.net/20.500.12713/6172
dc.identifier.volume860
dc.identifier.wosWOS:001389545800001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorBeddall, Andrew John
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorÇelebi, Emre
dc.institutionauthorŞimşek, Sinem
dc.institutionauthorUysal, Zekeriya
dc.institutionauthorÖztürk, Sertaç
dc.institutionauthorŞahinsoy, Merve
dc.institutionauthorPetukhov, Aleksandr
dc.institutionauthoridAndrew John Beddall / 0000-0002-8451-9672
dc.institutionauthoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.institutionauthoridSinem Şimşek / 0000-0002-9650-3846
dc.institutionauthoridZekeriya Uysal / 0000-0002-7110-8065
dc.institutionauthoridEmre Çelebi / 0000-0003-3793-0159
dc.institutionauthoridSertaç Öztürk / 0000-0001-6533-6144
dc.institutionauthoridMerve Şahinsoy / 0000-0002-7400-7286
dc.institutionauthoridAleksandr Petukhov / 0000-0002-8126-9575
dc.language.isoen
dc.publisherElsevier b.v.
dc.relation.ispartofPhysical letters b
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleMeasurement of top-quark pair production in association with charm quarks in proton–proton collisions at s=13 TeV with the ATLAS detector
dc.typeArticle

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