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Branching fraction measurement of J/ψ→KSKL and search for J/ψ→KSKS
Inst High Energy Phys, Beijing 100049, Peoples R China..
GI Budker Inst Nucl Phys SB RAS BINP, Novosibirsk 630090, Russia.;Novosibirsk State Univ, Novosibirsk 630090, Russia..
Helmholtz Inst Mainz, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany..
Bochum Ruhr Univ, D-44780 Bochum, Germany..
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2017 (English)In: Physical Review D: covering particles, fields, gravitation, and cosmology, ISSN 2470-0010, E-ISSN 2470-0029, Vol. 96, no 11, article id 112001Article in journal (Refereed) Published
Abstract [en]

Using a sample of 1.31 x 10(9) J/Psi events collected with the BESIII detector at the BEPCII collider, we study the decays of J/Psi -> KSKL and KSKS. The branching fraction of J/Psi -> KSKL is determined to be B(J/Psi -> KSKL) = (1.93 +/- 0.01 (stat) +/- 0.05 (syst)) x 10(-4), which significantly improves on previous measurements. No clear signal is observed for the J/Psi -> KSKS process, and the upper limit at the 95% confidence level for its branching fraction is determined to be B(J/Psi -> KSKS) < 1.4 x 10(-8), which improves on the previous searches by 2 orders in magnitude and reaches the order of the Einstein-Podolsky-Rosen expectation.

Place, publisher, year, edition, pages
2017. Vol. 96, no 11, article id 112001
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Subatomic Physics
Identifiers
URN: urn:nbn:se:uu:diva-343902DOI: 10.1103/PhysRevD.96.112001ISI: 000416950200001OAI: oai:DiVA.org:uu-343902DiVA, id: diva2:1187076
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BESIII CollaborationAvailable from: 2018-03-02 Created: 2018-03-02 Last updated: 2018-03-02Bibliographically approved

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Andersson, Walter IkegamiJohansson, TordKupsc, AndrzejLi, CuiPapenbrock, MichaelPettersson, JoachimSchönning, KarinWolke, Magnus

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Andersson, Walter IkegamiJohansson, TordKupsc, AndrzejLi, CuiPapenbrock, MichaelPettersson, JoachimSchönning, KarinWolke, Magnus
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Nuclear Physics
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Physical Review D: covering particles, fields, gravitation, and cosmology
Subatomic Physics

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