Search For Rare Decays Of Zz And Higgs Bosons To J/?j/? And A Photon In Proton-Proton Collisions At S?S = 13tev

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dc.authorid249433en_US
dc.contributor.authorBilki, Burak
dc.contributor.author., ve diğer.
dc.date.accessioned2019-12-28T10:14:46Z
dc.date.available2019-12-28T10:14:46Z
dc.date.issued2019
dc.departmentİstanbul Beykent Üniversitesien_US
dc.description.abstractA search is presented for decays of Z and Higgs bosons to a J/? meson and a photon, with the subsequent decay of the J/? to ?+?? . The analysis uses data from proton-proton collisions with an integrated luminosity of 35.9 fb?1 at s?=13TeV collected with the CMS detector at the LHC. The observed limit on the Z?J/?? decay branching fraction, assuming that the J/? meson is produced unpolarized, is 1.4×10?6 at 95% confidence level, which corresponds to a rate higher than expected in the standard model by a factor of 15. For extreme-polarization scenarios, the observed limit changes from ?13.6 to +8.6% with respect to the unpolarized scenario. The observed upper limit on the branching fraction for H?J/?? where the J/? meson is assumed to be transversely polarized is 7.6×10?4 , a factor of 260 larger than the standard model prediction. The results for the Higgs boson are combined with previous data from proton-proton collisions at s?=8TeV to produce an observed upper limit on the branching fraction for H?J/?? that is a factor of 220 larger than the standard model value.en_US
dc.identifier.citationEur. Phys. J. C (2019) 79:94en_US
dc.identifier.doi10.1140/epjc/s10052-019-6562-5
dc.identifier.issn1434-6052
dc.identifier.pmid30872972en_US
dc.identifier.scopus2-s2.0-85060865748
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-019-6562-5
dc.identifier.wosWOS:000457328300002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherThe CMS Collaborationen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.titleSearch For Rare Decays Of Zz And Higgs Bosons To J/?j/? And A Photon In Proton-Proton Collisions At S?S = 13teven_US
dc.typeArticleen_US

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