Measurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final state

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dc.WoS.categoriesAstronomy & Astrophysics; Physics, Particles & Fieldsen_US
dc.authorid0000-0002-9007-8260en_US
dc.contributor.authorYetkin, Elif Aslı
dc.date.accessioned2020-12-28T12:08:50Z
dc.date.available2020-12-28T12:08:50Z
dc.date.issued2019-06-11
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractStudies of on-shell and off-shell Higgs boson production in the four-lepton final state are presented, using data from the CMS experiment at the LHC that correspond to an integrated luminosity of 80.2 fb(-1) at a center-of-mass energy of 13 TeV. Joint constraints are set on the Higgs boson total width and parameters that express its anomalous couplings to two electroweak vector bosons. These results are combined with those obtained from the data collected at center-of-mass energies of 7 and 8 TeV, corresponding to integrated luminosities of 5.1 and 19.7 fb(-1), respectively. Kinematic information from the decay particles and the associated jets are combined using matrix element techniques to identify the production mechanism and to increase sensitivity to the Higgs boson couplings in both production and decay. The constraints on anomalous HVV couplings are found to be consistent with the standard model expectation in both the on-shell and off-shell regions. Under the assumption of a coupling structure similar to that in the standard model, the Higgs boson width is constrained to be 3.2(-2.2)(+2.8)MeV while the expected constraint based on simulation is 4.1(-4.0)(+5.0) MeV. The constraints on the width remain similar with the inclusion of the tested anomalous HVV interactions.en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1103/PhysRevD.99.112003en_US
dc.identifier.issn1550-2368
dc.identifier.issn1550-7998
dc.identifier.urihttps://hdl.handle.net/11411/3012
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.99.112003
dc.identifier.wosWOS:000471984900001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.issue11en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors200+en_US
dc.publisherAMER PHYSICAL SOCen_US
dc.relation.ispartofPHYSICAL REVIEW Den_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBROKEN SYMMETRIESen_US
dc.subjectDECAYSen_US
dc.subjectCONSTRAINTSen_US
dc.subjectSEARCHen_US
dc.subjectSPINen_US
dc.subjectMASSen_US
dc.subjectZZen_US
dc.titleMeasurements of the Higgs boson width and anomalous HVV couplings from on-shell and off-shell production in the four-lepton final stateen_US
dc.typeArticleen_US
dc.volume99en_US

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