Observation of psi(3686) -> eta ' e(+)e(-)

dc.WoS.categoriesAstronomy & Astrophysics; Physics, Nuclear; Physics, Particles & Fieldsen_US
dc.authorid0000-0001-5050-8441en_US
dc.contributor.authorÇetin, Serkant Ali
dc.date.accessioned2020-06-20T10:43:28Z
dc.date.available2020-06-20T10:43:28Z
dc.date.issued2018-08-10
dc.departmentFakülteler, Mühendislik ve Doğa Bilimleri Fakültesi, Enerji Sistemleri Mühendisliği Bölümüen_US
dc.description.abstractUsing a data sample of 448.1 x 10(6) psi(3686) events collected with the BESIII detector at the BEPCII collider, we report the first observation of the electromagnetic Dalitz decay psi(3686) -> eta'e(+)e(-), with significances of 7.0 sigma and 6.3 sigma when reconstructing the eta' meson via its decay modes eta' -> gamma pi(+)pi(-) and eta' -> pi(+)pi(-) eta (eta -> gamma gamma), respectively. The weighted average branching fraction is determined to be B(psi(3686) -> eta'e(+)e(-)) = (1.90 +/- 0.25 +/- 0.11) x 10(-6), where the first uncertainty is statistical and the second systematic. (C) 2018 The Author. Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP(3).en_US
dc.fullTextLevelFull Texten_US
dc.identifier.doi10.1016/j.physletb.2018.05.038en_US
dc.identifier.issn1873-2445
dc.identifier.issn0370-2693
dc.identifier.scopus2-s2.0-85050086120en_US
dc.identifier.urihttps://hdl.handle.net/11411/2256
dc.identifier.urihttps://doi.org/10.1016/j.physletb.2018.05.038
dc.identifier.wosWOS:000441762300062en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.nationalInternationalen_US
dc.numberofauthors500+en_US
dc.pages452-458en_US
dc.publisherELSEVIERen_US
dc.relation.ispartofPHYSICS LETTERS Ben_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjecte(+)e(-) Annihilationen_US
dc.subjectDalitz decayen_US
dc.subjectCharmoniumen_US
dc.subjectBESIIIen_US
dc.titleObservation of psi(3686) -> eta ' e(+)e(-)en_US
dc.typeArticleen_US
dc.volume783en_US

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