Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/7747
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dc.contributor.authorCMS Collaboration-
dc.contributor.authorKarapınar, Güler-
dc.date.accessioned2020-02-28T12:36:14Z
dc.date.available2020-02-28T12:36:14Z
dc.date.issued2018-10en_US
dc.identifier.citationSirunyan, A.M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., Brandstetter, J. ...CMS Collaboration (2018). Observation of the Z → ψ ℓ + ℓ − decay in pp collisions at √s = 13 TeV. Physical Review Letters, 121(14). doi:10.1103/PhysRevLett.121.141801en_US
dc.identifier.issn0031-9007
dc.identifier.issn0031-9007-
dc.identifier.issn1079-7114-
dc.identifier.urihttps://doi.org/10.1103/PhysRevLett.121.141801
dc.identifier.urihttps://hdl.handle.net/11147/7747
dc.description.abstractThis Letter presents the observation of the rare Z boson decay Z→ψ + -. Here, ψ represents contributions from direct J/ψ and ψ(2S)→J/ψX, + - is a pair of electrons or muons, and the J/ψ meson is detected via its decay to μ+μ-. The sample of proton-proton collision data, collected by the CMS experiment at the LHC at a center-of-mass energy of 13 TeV, corresponds to an integrated luminosity of 35.9 fb-1. The signal is observed with a significance in excess of 5 standard deviations. After subtraction of the ψ(2S)→J/ψX contribution, the ratio of the branching fraction of the exclusive decay Z→J/ψ + - to the decay Z→μ+μ-μ+μ- within a fiducial phase space is measured to be B(Z→J/ψ + -)/B(Z→μ+μ-μ+μ-)=0.67±0.18(stat)±0.05(syst).en_US
dc.description.sponsorshipThe Scientific and Technical Research Council of Turkey, and Turkish Atomic Energy Authorityen_US
dc.language.isoenen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Lettersen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPhase space methodsen_US
dc.subjectZ bosonsen_US
dc.subjectBranching fractionsen_US
dc.subjectRare decaysen_US
dc.subjectHadron collidersen_US
dc.subjectStandard deviationen_US
dc.titleObservation of the Z -> psi l(+)l(-) decay in pp collisions at root s= 13 TeVen_US
dc.typeArticleen_US
dc.institutionauthorKarapınar, Güler-
dc.departmentIzmir Institute of Technology. Mathematicsen_US
dc.identifier.volume121en_US
dc.identifier.issue14en_US
dc.identifier.wosWOS:000446406900001en_US
dc.identifier.scopus2-s2.0-85054666594en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.identifier.doi10.1103/PhysRevLett.121.141801-
dc.identifier.pmid30339440en_US
dc.relation.doi10.1103/PhysRevLett.121.141801en_US
dc.coverage.doi10.1103/PhysRevLett.121.141801en_US
item.openairetypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en-
item.fulltextWith Fulltext-
item.grantfulltextopen-
item.cerifentitytypePublications-
crisitem.author.dept04.02. Department of Mathematics-
Appears in Collections:Mathematics / Matematik
PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection
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