Search For Dark Photons In Decays Of Higgs Bosons Produced In Association With Z Bosons In Proton-Proton Collisions At ?S = 13 Tev

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dc.authorid249433en_US
dc.authorid291820en_US
dc.contributor.authorBilki, Burak
dc.contributor.authorGürpınar Güler, Emine
dc.contributor.author., ve diğer.
dc.date.accessioned2019-12-29T11:45:57Z
dc.date.available2019-12-29T11:45:57Z
dc.date.issued2019
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractA search is presented for a Higgs boson that is produced in association with a Z boson and that decays to an undetected particle together with an isolated photon. The search is performed by the CMS Collaboration at the Large Hadron Collider using a data set corresponding to an integrated luminosity of 137 fb?1 recorded at a center-of-mass energy of 13 TeV. No significant excess of events above the expectation from the standard model background is found. The results are interpreted in the context of a theoretical model in which the undetected particle is a massless dark photon. An upper limit is set on the product of the cross section for associated Higgs and Z boson production and the branching fraction for such a Higgs boson decay, as a function of the Higgs boson mass. For a mass of 125 GeV, assuming the standard model production cross section, this corresponds to an observed (expected) upper limit on this branching fraction of 4.6 (3.6)% at 95% confidence level. These are the first limits on Higgs boson decays to final states that include an undetected massless dark photon.en_US
dc.identifier.citationJ. High Energ. Phys. (2019) 2019: 139.en_US
dc.identifier.doi10.1007/JHEP10(2019)139
dc.identifier.issn1029-8479
dc.identifier.scopus2-s2.0-85074147634en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1007/JHEP10(2019)139
dc.identifier.wosWOS:000492982300001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherThe CMS Collaborationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.subjectBeyond Standard Modelen_US
dc.subjectHadron-Hadron scattering (experiments)en_US
dc.subjectPhoton productionen_US
dc.titleSearch For Dark Photons In Decays Of Higgs Bosons Produced In Association With Z Bosons In Proton-Proton Collisions At ?S = 13 Teven_US
dc.typeArticleen_US

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