Observation of X(2370) and search for X(2120) in J/? ? ? K ¯K ?

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dc.WoS.categoriesPhysics, Particles & Fieldsen_US
dc.authorid0000-0001-5050-8441en_US
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2020-11-09T12:58:55Z
dc.date.available2020-11-09T12:58:55Z
dc.date.issued2020-08-17
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description11 pagesen_US
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.fullTextLevelFull Texten_US
dc.identifier.doi10.1140/epjc/s10052-020-8078-4
dc.identifier.issn1434-6052
dc.identifier.issn1434-6044
dc.identifier.scopus2-s2.0-85089524371en_US
dc.identifier.urihttps://hdl.handle.net/11411/2541
dc.identifier.urihttps://doi.org/10.1140/epjc/s10052-020-8078-4
dc.identifier.wosWOS:000563459500003en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.issue8en_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors1000+en_US
dc.publisherSpringeren_US
dc.relation.ispartofEuropean Physical Journal Cen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectDecayen_US
dc.subjectGlueballsen_US
dc.titleObservation of X(2370) and search for X(2120) in J/? ? ? K ¯K ?
dc.typeArticle
dc.volume80en_US

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