Study of two-photon decays of pseudoscalar mesons via J/Psi radiative decays

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dc.contributor.authorÇakır, Orhan
dc.contributor.departmentFen Fakültesitr_TR
dc.date.accessioned2019-07-03T13:41:09Z
dc.date.available2019-07-03T13:41:09Z
dc.date.issued2018
dc.description.abstractUsing a sample of 4.48 x 10(8) Psi(3686) events collected with the BESIII detector at the BEPCII collider, we study the two-photon decays of the pseudoscalar mesons pi(0,) eta , eta' , eta(1405), eta(1475), eta(1760), and X(1835) in J/Psi radiative decays using Psi(3686) -> pi(+) pi(-) J/Psi events. The pi(0), eta, and eta' mesons are clearly observed in the two-photon mass spectra, and the branching fractions are determined to be B(J/Psi -> gamma pi(0) -> 3 gamma) = (3.57 +/- 0.12 +/- 0.16) x 10(-5), B(J/Psi -> gamma eta -> 3 gamma) = (4.42 +/- 0.04 +/- 0.18) x 10(-4), and B(J/Psi -> gamma eta' -> 2 gamma) = (1.26 +/- 0.02 +/- 0.05) x 10(-4), where the first error is statistical and the second is systematic. No clear signal for eta(1405), eta(1475), eta(1760) or X(1835) is observed in the two- photon mass spectra, and upper limits at the 90% confidence level on the product branching fractions are obtained.tr_TR
dc.description.indexWos
dc.description.indexwos
dc.identifier.endpage09tr_TR
dc.identifier.issue07tr_TR
dc.identifier.other10.1103/PhysRevD.97.072014
dc.identifier.startpage01tr_TR
dc.identifier.urihttp://hdl.handle.net/20.500.12575/67275
dc.identifier.volume97tr_TR
dc.language.isoentr_TR
dc.relation.indexWOStr_TR
dc.relation.journalPhysical Review Dtr_TR
dc.subjectPartial-wave analysistr_TR
dc.titleStudy of two-photon decays of pseudoscalar mesons via J/Psi radiative decaystr_TR
dc.typeArticletr_TR

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