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Searches for isospin-violating transitions chi(c0,2) -> pi(0)eta(c)
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2015 (English)In: Physical Review D, ISSN 1550-7998, E-ISSN 1550-2368, Vol. 91, no 11, 112018Article in journal (Refereed) Published
Abstract [en]

We present the first upper-limit measurement of the branching fractions of the isospin-violating transitions chi(c0,2) -> pi(0)eta(c). The measurements are performed using 106 x 10(6) psi(3686) events accumulated with the BESIII detector at the BEPCII e(+)e(-) collider at a center-of-mass energy corresponding to the psi(3686) mass. We obtained upper limits on the branching fractions at a 90% confidence level of B(chi(c0) -> pi(0)eta(c)) < 1.6 x 10(-3) and B(chi(c2) -> pi(0)eta(c)) < 3.2 x 10(-3).

Place, publisher, year, edition, pages
2015. Vol. 91, no 11, 112018
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Physical Sciences
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URN: urn:nbn:se:uu:diva-258759DOI: 10.1103/PhysRevD.91.112018ISI: 000357093300002OAI: oai:DiVA.org:uu-258759DiVA: diva2:842517
Available from: 2015-07-20 Created: 2015-07-20 Last updated: 2017-12-04Bibliographically approved

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Johansson, TordKupsc, AndrzejSchönning, KarinWolke, Magnus

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