Search for charged-lepton flavor violation in top quark production and decay in pp collisions at ?s = 13 TeV

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dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2022-10-18T11:34:28Z
dc.date.available2022-10-18T11:34:28Z
dc.date.issued2022-06-06
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractAbstract: Results are presented from a search for charged-lepton flavor violating (CLFV) interactions in top quark production and decay in pp collisions at a center-of-mass energy of 13 TeV. The events are required to contain one oppositely charged electron-muon pair in the final state, along with at least one jet identified as originating from a bottom quark. The data correspond to an integrated luminosity of 138 fb?1, collected by the CMS experiment at the LHC. This analysis includes both the production (q ? e?t) and decay (t ? e?q) modes of the top quark through CLFV interactions, with q referring to a u or c quark. These interactions are parametrized using an effective field theory approach. With no significant excess over the standard model expectation, the results are interpreted in terms of vector-, scalar-, and tensor-like CLFV four-fermion effective interactions. Finally, observed exclusion limits are set at 95% confidence levels on the respective branching fractions of a top quark to an e? pair and an up (charm) quark of 0.13 × 10?6 (1.31 × 10?6), 0.07 × 10?6 (0.89 × 10?6), and 0.25 × 10?6 (2.59 × 10?6) for vector, scalar, and tensor CLFV interactions, respectively. [Figure not available: see fulltext.] © 2022, The Author(s).en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP06(2022)082
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85137075947en_US
dc.identifier.urihttps://hdl.handle.net/11411/4591
dc.identifier.urihttps://doi.org/10.1007/JHEP06(2022)082
dc.identifier.wosWOS:000812510500001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue6en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors100+en_US
dc.publisherSpringer Science and Business Media Deutschland GmbHen_US
dc.relation.ispartofJournal of High Energy Physicsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectHadron-Hadron Scatteringen_US
dc.subjectTop Physicsen_US
dc.titleSearch for charged-lepton flavor violation in top quark production and decay in pp collisions at ?s = 13 TeV
dc.typeArticle
dc.volume2022en_US

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