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dc.contributor.authorKolcu, Onur Buğraen_US
dc.contributor.authorBESIII Collaborationen_US
dc.date.accessioned2020-12-28T12:24:57Z
dc.date.available2020-12-28T12:24:57Z
dc.date.issued2020en_US
dc.identifier.citationkünye girileceken_US
dc.identifier.issn1434-6044
dc.identifier.issn1434-6052
dc.identifier.urihttp://dx.doi.org/10.1140/epjc/s10052-020-8078-4
dc.identifier.urihttps://hdl.handle.net/20.500.12294/2527
dc.description.abstractUsing a sample of 1.31x109<mml:mspace width="3.33333pt"></mml:mspace>J/psi events collected with the BESIII detector, we perform a study of J/psi -> gamma KK<overbar></mml:mover>eta '. X(2370) is observed in the KK<overbar></mml:mover>eta ' invariant-mass distribution with a statistical significance of 8.3 sigma. Its resonance parameters are measured to be M=2341.6 +/- 6.5<mml:mspace width="0.166667em"></mml:mspace>(stat.)+/- 5.7<mml:mspace width="0.166667em"></mml:mspace>(syst.)<mml:mspace width="3.33333pt"></mml:mspace>MeV/c2 and Gamma =117 +/- 10<mml:mspace width="0.166667em"></mml:mspace>(stat.)+/- 8<mml:mspace width="0.166667em"></mml:mspace>(syst.)<mml:mspace width="3.33333pt"></mml:mspace>MeV. The product branching fractions for J/psi -> gamma X(2370),X(2370)-> K+K-eta ' and J/psi -> gamma X(2370),X(2370)-> KS0KS0 eta ' are determined to be (1.79 +/- 0.23<mml:mspace width="0.166667em"></mml:mspace>(stat.)+/- 0.65<mml:mspace width="0.166667em"></mml:mspace>(syst.))x10-5 and (1.18 +/- 0.32<mml:mspace width="0.166667em"></mml:mspace>(stat.)+/- 0.39<mml:mspace width="0.166667em"></mml:mspace>(syst.))x10-5, respectively. No evident signal for X(2120) is observed in the KK<overbar></mml:mover>eta ' invariant-mass distribution. The upper limits for the product branching fractions of B(J/psi -> gamma X(2120)-> gamma K+K-eta ') and B(J/psi -> gamma X(2120)-> gamma KS0KS0 eta ') are determined to be 1.49x10<mml:mo>-5 and 6.38<mml:mo>x10<mml:mo>-6 at the 90% confidence level, respectively.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.ispartofEuropean Physical Journal C.en_US
dc.identifier.doi10.1140/epjc/s10052-020-8078-4en_US
dc.identifier.doi10.1140/epjc/s10052-020-8078-4
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.rightsAttribution-NoDerivs 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nd/3.0/us/*
dc.titleObservation of X(2370) and search for X(2120) in J/ ψ→ γKK¯ η′ : BESIII Collaborationen_US
dc.typearticleen_US
dc.departmentMühendislik ve Mimarlık Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.authorid0000-0002-9177-1286en_US
dc.identifier.volume80en_US
dc.identifier.issue8en_US
dc.identifier.startpage746en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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