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Measurement of chi(cJ) decaying into eta ' K+K-
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2014 (English)In: Physical Review D, ISSN 1550-7998, Vol. 89, no 7, 074030- p.Article in journal (Refereed) Published
Abstract [en]

Using (106.41 +/- 0.86) x 10(6) Psi(3686) events collected with the BESIII detector at BEPCII, we study for the first time the decay chi(cJ) -> eta'K+K- (J = 1, 2), where eta' -> gamma rho(0) and eta' -> eta pi(+)pi(-). A partial wave analysis in the covariant tensor amplitude formalism is performed for the decay chi(c1) -> eta'K+K-. Intermediate processes chi(c1) -> eta'f(2)'(1525) chi(c1) -> K-0*(1430)K-+/-(-/+) (K-0*(1430)(+/-) -> eta'K-+/-) are observed with statistical significances larger than 5 sigma, and their branching fractions are measured.

Place, publisher, year, edition, pages
2014. Vol. 89, no 7, 074030- p.
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Physical Sciences
URN: urn:nbn:se:uu:diva-225024DOI: 10.1103/PhysRevD.89.074030ISI: 000334318200009OAI: oai:DiVA.org:uu-225024DiVA: diva2:719527
Available from: 2014-05-26 Created: 2014-05-26 Last updated: 2014-05-26Bibliographically approved

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Johansson, TordKupsc, AndrzejSchönning, KarinWolke, Magnus
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