Measurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at √s = 7 and 8 TeV

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dc.contributor.authorAad, G.
dc.contributor.authorAbbott, B.
dc.contributor.authorAbdallah, J.
dc.contributor.authorJ. Karancsi
dc.contributor.authorM. Bartók
dc.contributor.authorA. Makovec
dc.contributor.authorP. Raics
dc.contributor.authorZ.L. Trocsanyi
dc.contributor.authorB. Ujvari
dc.contributor.authorKarancsi János (1987-) (fizikus)
dc.contributor.authorBartók Márton (2024-) (xxx)
dc.contributor.authorMakovec Alajos (1987-) (fizikus)
dc.contributor.authorRaics Péter (1944-) (fizikus)
dc.contributor.authorTrócsányi Zoltán (1961-) (fizikus)
dc.contributor.authorUjvári Balázs (1977-) (Fizikus / PhD)
dc.contributor.submitterdepFizikai Intézet -- 749
dc.contributor.submitterdepTTK
dc.contributor.submitterdepDebreceni Egyetem
dc.date.accessioned2024-08-03T13:50:32Z
dc.date.available2024-08-03T13:50:32Z
dc.date.oa2025-02-14
dc.date.updated2024-08-03T13:50:32Z
dc.description.abstractCombined ATLAS and CMS measurements of the Higgs boson production and decay rates, as well as constraints on its couplings to vector bosons and fermions, are presented. The combination is based on the analysis of five production processes, namely gluon fusion, vector boson fusion, and associated production with a W or a Z boson or a pair of top quarks, and of the six decay modes H → ZZ, W W, γγ, ττ, bb, and μμ. All results are reported assuming a value of 125.09 GeV for the Higgs boson mass, the result of the combined measurement by the ATLAS and CMS experiments. The analysis uses the CERN LHC proton-proton collision data recorded by the ATLAS and CMS experiments in 2011 and 2012, corresponding to integrated luminosities per experiment of approximately 5 fb−1 at √s = 7 TeV and 20 fb−1 at √s = 8 TeV. The Higgs boson production and decay rates measured by the two experiments are combined within the context of three generic parameterisations: two based on cross sections and branching fractions, and one on ratios of coupling modifiers. Several interpretations of the measurements with more model-dependent parameterisations are also given. The combined signal yield relative to the Standard Model prediction is measured to be 1.09 ± 0.11. The combined measurements lead to observed significances for the vector boson fusion production process and for the H → ττ decay of 5.4 and 5.5 standard deviations, respectively. The data are consistent with the Standard Model predictions for all parameterisations considered.
dc.description.correctorLB
dc.identifier.citationJournal of High Energy Physics. -2016 : 8 (2016), p. 1-111. -J. High Energy Phys. -1126-6708. -1029-8479
dc.identifier.doi10.1007/JHEP08(2016)045
dc.identifier.issn1126-6708. -
dc.identifier.issn1029-8479
dc.identifier.opachttps://ebib.lib.unideb.hu/ebib/CorvinaWeb?action=cclfind&resultview=long&ccltext=idno+BIBFORM123155
dc.identifier.urihttps://hdl.handle.net/2437/378824
dc.identifier.urlhttp://link.springer.com/10.1007/JHEP08(2016)045
dc.languageeng
dc.rights.accessopen access article
dc.rights.ownerCERN
dc.subject.otheridegen nyelvű folyóiratközlemény külföldi lapban
dc.subject.otherHadron-Hadron scattering (experiments)
dc.subject.otherHiggs physics
dc.titleMeasurements of the Higgs boson production and decay rates and constraints on its couplings from a combined ATLAS and CMS analysis of the LHC pp collision data at √s = 7 and 8 TeV
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