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Search for heavy resonances decaying into a Z or W boson and a Higgs boson in final states with leptons and b-jets in 139 fb1 of pp collisions at √s = 13 TeV with the ATLAS detector
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).ORCID iD: 0000-0002-9766-2670
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).ORCID iD: 0000-0001-7489-9184
Stockholm University, Faculty of Science, Department of Physics. Stockholm University, Faculty of Science, The Oskar Klein Centre for Cosmo Particle Physics (OKC).ORCID iD: 0000-0002-3380-8167
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Number of Authors: 29232023 (English)In: Journal of High Energy Physics (JHEP), ISSN 1126-6708, E-ISSN 1029-8479, Vol. 2023, no 6, article id 16Article in journal (Refereed) Published
Abstract [en]

This article presents a search for new resonances decaying into a Z or W boson and a 125 GeV Higgs boson h, and it targets the νν¯¯¯bb¯¯, ℓ+bb¯, or ℓ±νbb¯ final states, where ℓ = e or μ, in proton-proton collisions at √s = 13 TeV. The data used correspond to a total integrated luminosity of 139 fb−1 collected by the ATLAS detector during Run 2 of the LHC at CERN. The search is conducted by examining the reconstructed invariant or transverse mass distributions of Zh or Wh candidates for evidence of a localised excess in the mass range from 220 GeV to 5 TeV. No significant excess is observed and 95% confidence-level upper limits between 1.3 pb and 0.3 fb are placed on the production cross section times branching fraction of neutral and charged spin-1 resonances and CP-odd scalar bosons. These limits are converted into constraints on the parameter space of the Heavy Vector Triplet model and the two-Higgs-doublet model.

Place, publisher, year, edition, pages
2023. Vol. 2023, no 6, article id 16
Keywords [en]
Hadron-Hadron Scattering, Beyond the Standard Model Searches
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:su:diva-221620DOI: 10.1007/JHEP06(2023)016ISI: 001035458200001Scopus ID: 2-s2.0-85161433187OAI: oai:DiVA.org:su-221620DiVA, id: diva2:1801511
Available from: 2023-10-02 Created: 2023-10-02 Last updated: 2023-10-02Bibliographically approved

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Andrean, Stefio Y.Backman, FilipBarranco Navarro, LauraBohm, ChristianClément, ChristopheDunne, KatherineHellman, StenIngebretsen Carlson, TomKim, DongwonLee, SuhyunLou, XuanhongMilstead, David A.Moa, TorbjörnPasuwan, PatrawanPereira Sanchez, LauraRichter, StefanShaikh, Nabila W.Silverstein, Samuel B.Sjölin, JörgenStrandberg, SaraStrübig, AntoniaValdés Santurio, Eduardo

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Andrean, Stefio Y.Backman, FilipBarranco Navarro, LauraBohm, ChristianClément, ChristopheDunne, KatherineHellman, StenIngebretsen Carlson, TomKim, DongwonLee, SuhyunLou, XuanhongMilstead, David A.Moa, TorbjörnPasuwan, PatrawanPereira Sanchez, LauraRichter, StefanShaikh, Nabila W.Silverstein, Samuel B.Sjölin, JörgenStrandberg, SaraStrübig, AntoniaValdés Santurio, Eduardo
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Department of PhysicsThe Oskar Klein Centre for Cosmo Particle Physics (OKC)
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Subatomic Physics

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