Search for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at ?s = 13 TeV

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dc.authorscopusid35222495600
dc.authorscopusid56217303000
dc.authorscopusid57222730792
dc.authorscopusid57204570563
dc.authorscopusid55470759900
dc.authorscopusid57350183900
dc.authorscopusid58189557300
dc.contributor.authorTumasyan, A.
dc.contributor.authorAdam, W.
dc.contributor.authorAndrejkovic, J.W.
dc.contributor.authorBergauer, T.
dc.contributor.authorChatterjee, S.
dc.contributor.authorDamanakis, K.
dc.contributor.authorDragicevic, M.
dc.date.accessioned2024-06-13T20:15:54Z
dc.date.available2024-06-13T20:15:54Z
dc.date.issued2023
dc.departmentİstanbul Gedik Üniversitesi
dc.description.abstractA search for the pair production of the lightest supersymmetric partner of the top quark, the top squark (t ~1), is presented. The search targets the four-body decay of the t ~1 , which is preferred when the mass difference between the top squark and the lightest supersymmetric particle is smaller than the mass of the W boson. This decay mode consists of a bottom quark, two other fermions, and the lightest neutralino (?~10), which is assumed to be the lightest supersymmetric particle. The data correspond to an integrated luminosity of 138 fb?1 of proton-proton collisions at a center-of-mass energy of 13 TeV collected by the CMS experiment at the CERN LHC. Events are selected using the presence of a high-momentum jet, an electron or muon with low transverse momentum, and a significant missing transverse momentum. The signal is selected based on a multivariate approach that is optimized for the difference between m(t ~1) and m(?~10). The contribution from leading background processes is estimated from data. No significant excess is observed above the expectation from standard model processes. The results of this search exclude top squarks at 95% confidence level for masses up to 480 and 700 GeV for m(t ~1) ? m(?~10) = 10 and 80 GeV, respectively. [Figure not available: see fulltext.]. © 2023, The Author(s).
dc.identifier.doi10.1007/JHEP06(2023)060
dc.identifier.issn1029-8479
dc.identifier.issue6
dc.identifier.scopus2-s2.0-85168275841
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1007/JHEP06(2023)060
dc.identifier.urihttps://hdl.handle.net/11501/930
dc.identifier.volume2023
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.relation.ispartofJournal of High Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectHadron-Hadron Scattering
dc.subjectSupersymmetry
dc.subjectTop Squark
dc.titleSearch for top squarks in the four-body decay mode with single lepton final states in proton-proton collisions at ?s = 13 TeV
dc.typeArticle

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