Search for resonant and non-resonant Higgs boson pair production in the bb?+?- decay channel using 13TeV pp collision data from the ATLAS detector

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dc.WoS.categoriesPhysics, Particles & Fieldsen_US
dc.authorid0000-0001-5050-8441en_US
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2024-04-26T08:59:38Z
dc.date.available2024-04-26T08:59:38Z
dc.date.issued2023-07-05
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractA search for Higgs boson pair production in events with two b-jets and two tau -leptons is presented, using a proton-proton collision dataset with an integrated luminosity of 139 fb(-1) collected at root s = 13TeV by the ATLAS experiment at the LHC. Higgs boson pairs produced non-resonantly or in the decay of a narrow scalar resonance in the mass range from 251 to 1600 GeV are targeted. Events in which at least one tau-lepton decays hadronically are considered, and multivariate discriminants are used to reject the backgrounds. No significant excess of events above the expected background is observed in the non-resonant search. The largest excess in the resonant search is observed at a resonance mass of 1 TeV, with a local (global) significance of 3.1 sigma (2.0 sigma). Observed (expected) 95% confidence-level upper limits are set on the non-resonant Higgs boson pair-production cross-section at 4.7 (3.9) times the Standard Model prediction, assuming Standard Model kinematics, and on the resonant Higgs boson pair-production cross-section at between 21 and 900 fb (12 and 840 fb), depending on the mass of the narrow scalar resonance.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1007/JHEP07(2023)040
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85164470881en_US
dc.identifier.urihttps://hdl.handle.net/11411/5333
dc.identifier.urihttps://doi.org/10.1007/JHEP07(2023)040
dc.identifier.wosWOS:001062395700001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue7en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors200+en_US
dc.publisherSPRINGERen_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.subjectSTANDARD MODELen_US
dc.subjectPLUS PLUSen_US
dc.subjectSUPERSYMMETRYen_US
dc.subjectSTRAHLUNGen_US
dc.subjectPROGRAMen_US
dc.subjectPHYSICSen_US
dc.subjectLHCen_US
dc.subjectNLOen_US
dc.titleSearch for resonant and non-resonant Higgs boson pair production in the bb?+?- decay channel using 13TeV pp collision data from the ATLAS detector
dc.typeArticle

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