Search for new particles in final states with a boosted top quark and missing transverse momentum 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.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.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorBeddall, Andrew John
dc.contributor.authorÇetin, Serkant Ali
dc.contributor.authorŞimşek, Sinem
dc.contributor.authorUysal, Zekeriya
dc.date.accessioned2025-04-18T10:37:04Z
dc.date.available2025-04-18T10:37:04Z
dc.date.issued2024
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractA search for events with one top quark and missing transverse momentum in the final state is presented. The fully hadronic decay of the top quark is explored by selecting events with a reconstructed boosted top-quark topology produced in association with large missing transverse momentum. The analysis uses 139 fb−1 of proton-proton collision data at a centre-of-mass energy of s = 13 TeV recorded during 2015-2018 by the ATLAS detector at the Large Hadron Collider. The results are interpreted in the context of simplified models for Dark Matter particle production and the single production of a vector-like T quark. Without significant excess relative to the Standard Model expectations, 95% confidence-level upper limits on the corresponding cross-sections are obtained. The production of Dark Matter particles in association with a single top quark is excluded for masses of a scalar (vector) mediator up to 4.3 (2.3) TeV, assuming mχ = 1 GeV and the model couplings λq = 0.6 and λχ = 0.4 (a = 0.5 and gχ = 1). The production of a single vector-like T quark is excluded for masses below 1.8 TeV assuming a coupling to the top quark κT = 0.5 and a branching ratio for T → Zt of 25%.
dc.identifier.citationNull, N., Aad, G., Abbott, B., Abeling, K., Abicht, N., Abidi, S., ... & Balakrishnan, V. (2024). Search for new particles in fnal states with a boosted top quark and missing transverse momentum in proton-proton collisions at√ s= 13 TeV with the ATLAS detector. JOURNAL OF HIGH ENERGY PHYSICS, 2024(5).
dc.identifier.doi10.1007/JHEP05(2024)263
dc.identifier.endpage56
dc.identifier.issn10298479
dc.identifier.issue5
dc.identifier.scopus2-s2.0-85197477787
dc.identifier.scopusqualityQ1
dc.identifier.startpage1
dc.identifier.urihttp://dx.doi.org/10.1007/JHEP05(2024)263
dc.identifier.urihttps://hdl.handle.net/20.500.12713/7146
dc.identifier.wosWOS:001270338400001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorBeddall, Andrew John
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorÖztürk, Sertaç
dc.institutionauthorŞimşek, Sinem
dc.institutionauthorUysal, Zekeriya
dc.institutionauthoridAndrew John Beddall / 0000-0002-8451-9672
dc.institutionauthoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.institutionauthoridSertaç Öztürk / 0000-0001-6533-6144
dc.institutionauthoridSinem Şimşek / 0000-0002-9650-3846
dc.institutionauthoridZekeriya Uysal / 0000-0002-7110-8065
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.titleSearch for new particles in final states with a boosted top quark and missing transverse momentum in proton-proton collisions at s = 13 TeV with the ATLAS detector
dc.typeArticle

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