Constraint on the total width of the Higgs boson from Higgs boson and four-top-quark measurements in pp collisions at = 13 TeV with the ATLAS detector

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dc.authorscopusidAndrew John Beddall / 57215802986
dc.authorscopusidEmre Çelebi / 57193745716
dc.authorscopusidSerkant Ali Çetin / 34567544400
dc.authorscopusidSertaç Öztürk / 56421488400
dc.authorscopusidMerve Şahinsoy Karacasu / 56893808000
dc.authorscopusidSinem Şimşek / 57210344387
dc.authorscopusidZekeriya Uysal / 57210345628
dc.authorwosidAndrew John Beddall / AAE-5820-2022
dc.authorwosidEmre Çelebi / KEI-8113-2024
dc.authorwosidSerkant Ali Çetin / AGF-0147-2022
dc.authorwosidSertaç Öztürk / AGO-2476-2022
dc.authorwosidMerve Şahinsoy Karacasu /
dc.authorwosidSinem Şimşek / AGG-2640-2022
dc.authorwosidZekeriya Uysal / AAD-1226-2019
dc.contributor.authorAad, G.
dc.contributor.authorAakvaag, E.
dc.contributor.authorAbbott, B.
dc.contributor.authorBeddall, Andrew John
dc.contributor.authorÇelebi,
dc.contributor.authorÖztürk, Sertaç
dc.contributor.authorŞahinsoy, Merve
dc.contributor.authorŞimşek, Sinem
dc.contributor.authorUysal, Zekeriya
dc.date.accessioned2025-04-18T10:29:12Z
dc.date.available2025-04-18T10:29:12Z
dc.date.issued2025
dc.departmentİstinye Üniversitesi, Rektörlük, Temel Bilimler Bölümü
dc.description.abstractThis Letter presents a constraint on the total width of the Higgs boson (ΓH) using a combined measurement of on-shell Higgs boson production and the production of four top quarks, which involves contributions from off-shell Higgs boson-mediated processes. This method relies on the assumption that the tree-level Higgs-top Yukawa coupling strength is the same for on-shell and off-shell Higgs boson production processes, thereby avoiding any assumptions about the relationship between on-shell and off-shell gluon fusion Higgs production rates, which were central to previous measurements. The result is based on up to 140 fb−1 of proton–proton collisions at a centre-of-mass energy of s = 13 TeV collected with the ATLAS detector at the Large Hadron Collider. The observed (expected) 95% confidence level upper limit on ΓH is 450 MeV (75 MeV). Additionally, considering the constraint on the Higgs-top Yukawa coupling from loop-induced Higgs boson production and decay processes further yields an observed (expected) upper limit of 160 MeV (55 MeV). © 2025 CERN for the benefit of the ATLAS Collaboration
dc.identifier.citationAad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. J., ... & Bahner, D. (2025). Constraint on the total width of the Higgs boson from Higgs boson and four-top-quark measurements in pp collisions at s= 13 TeV with the ATLAS detector. Physics Letters B, 139277.
dc.identifier.doi10.1016/j.physletb.2025.139277
dc.identifier.issn03702693
dc.identifier.scopus2-s2.0-85215925159
dc.identifier.scopusqualityQ1
dc.identifier.urihttp://dx.doi.org/10.1016/j.physletb.2025.139277
dc.identifier.urihttps://hdl.handle.net/20.500.12713/7088
dc.identifier.volume861
dc.indekslendigikaynakScopus
dc.institutionauthorBeddall, Andrew John
dc.institutionauthorÇelebi, Emre
dc.institutionauthorÇetin, Serkant Ali
dc.institutionauthorÖztürk, Sertaç
dc.institutionauthorŞahinsoy Karacasu, Merve
dc.institutionauthorŞimşek, Sinem
dc.institutionauthorUysal, Zekeriya
dc.institutionauthoridAndrew John Beddall / 0000-0002-8451-9672
dc.institutionauthoridEmre Çelebi / 0000-0003-3793-0159
dc.institutionauthoridSerkant Ali Çetin / 0000-0001-5050-8441
dc.institutionauthoridSertaç Öztürk / 0000-0001-6533-6144
dc.institutionauthoridMerve Şahinsoy Karacasu / 0000-0002-7400-7286
dc.institutionauthoridSinem Şimşek / 0000-0002-9650-3846
dc.institutionauthoridZekeriya Uysal / 0000-0002-7110-8065
dc.language.isoen
dc.publisherElsevier B.V.
dc.relation.ispartofPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.titleConstraint on the total width of the Higgs boson from Higgs boson and four-top-quark measurements in pp collisions at = 13 TeV with the ATLAS detector
dc.typeOther

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