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dc.contributor.authorKolcu, O. B.
dc.contributor.authorBESIII Collaboration
dc.date.accessioned2023-11-09T11:37:40Z
dc.date.available2023-11-09T11:37:40Z
dc.date.issued2023en_US
dc.identifier.citationAblikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., ... & Kalantar-Nayestanaki, N. (2023). Observation of ψ (3770)→ η J/ψ. Physical Review D, 107(9), L091101.en_US
dc.identifier.issn24700010
dc.identifier.urihttps://doi.org/10.1103/PhysRevD.107.L091101
dc.identifier.urihttps://hdl.handle.net/20.500.12294/3973
dc.description.abstractUsing a data sample collected with the BESIII detector operating at the BEPCII storage ring, the Born cross section of the process e+e- -> eta J=psi at a center-of-mass energy pffisffi = 3.773 GeV is measured to be (8.88 +/- 0.87 +/- 0.42) pb. We fit the cross section line shape before correcting for the initial state radiation ffiffifromps = 3.773 to 4.600 GeV to obtain the branching fraction B(psi(3770) -> eta J=psi). We obtain B(psi(3770) -> eta J=psi) = (11.3 +/- 5.9 +/- 1.1) x 10-4 when the psi(3770) decay amplitude is added coher-ently to the other contributions, and (8.7 +/- 1.0 +/- 0.8) x 10-4 when it is added incoherently. Here the quoted uncertainties are statistical and systematic, respectively. In both cases, the statistical significance of psi(3770) resonance is above 7 sigma. This is the first time the decay psi(3770) -> eta J=psi is observed with a statistical significance greater than 5 sigma.en_US
dc.language.isoengen_US
dc.publisherAmerican Physical Societyen_US
dc.relation.ispartofPhysical Review Den_US
dc.identifier.doi10.1103/PhysRevD.107.L091101en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectRADIATIVE-CORRECTIONSen_US
dc.subjectMONTE-CARLOen_US
dc.subjectDECAYen_US
dc.subjectCHARMONIUMen_US
dc.titleObservation of ψ(3770) → ηJ/ψen_US
dc.typearticleen_US
dc.departmentMühendislik ve Mimarlık Fakültesi, Bilgisayar Mühendisliği Bölümüen_US
dc.authorid0000-0002-9177-1286en_US
dc.identifier.volume107en_US
dc.identifier.issue9en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.institutionauthorKolcu, O. B.
dc.authorwosidDWD-3692-2022en_US
dc.authorscopusid57936993500en_US
dc.identifier.wosqualityQ1en_US
dc.identifier.wosWOS:001021525600002en_US
dc.identifier.scopus2-s2.0-85160780435en_US


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