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Search for ψ(3686)→γηc(η(1405))→γπ+ππ0
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..
Ruhr Univ Bochum, 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 112008Article in journal (Refereed) Published
Abstract [en]

Using a sample of 448.1×106  ψ(3686) events collected with the BESIII detector, a search for the isospin violating decay ηcπ+ππ0 via ψ(3686)→γηc is presented. No signal is observed, and the upper limit on B(ψ(3686)→γηcB(ηcπ+ππ0) is determined to be 1.6×10−6 at the 90% confidence level. In addition, a search for η(1405)→f0(980)π0 in ψ(3686) radiative decays is performed. No signal is observed, and the branching fraction B(ψ(3686)→γη(1405))×B(η(1405)→f0(980)π0B(f0(980)→π+π−) is calculated to be less than 5.0×10−7 at the 90% confidence level.

Place, publisher, year, edition, pages
2017. Vol. 96, no 11, article id 112008
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:uu:diva-339773DOI: 10.1103/PhysRevD.96.112008ISI: 000418380100003OAI: oai:DiVA.org:uu-339773DiVA, id: diva2:1181775
Funder
German Research Foundation (DFG), Collaborative Research Center CRC 1044 FOR 2359Swedish Research CouncilAvailable from: 2018-02-09 Created: 2018-02-09 Last updated: 2018-02-09Bibliographically 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
Astronomy, Astrophysics and Cosmology

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