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Measurements of (XcJ)-> K+K-K+K- decays
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2006 (English)In: Physics Letters B, ISSN 0370-2693, Vol. 642, no 3, 197-202 p.Article in journal (Refereed) Published
Abstract [en]

Using 14M psi(2S) events taken with the BESII detector, chi(cJ) -> 2(K+K-) decays are studied. For the four-kaon final state, the branching fractions are B(chi(c0,1,2) ->.2(K+K-)) = (3.48 +/- 0.23 +/- 0.47) x 10(-3), (0.70 +/- 0.13 +/- 0.10) x 10(-3), and (2.17 +/- 0.20 +/- 0.31) x 10(-3). For the phi K+K- final state, the branching fractions, which are measured for the first time, are B(chi(c0,1,2) -> phi K+K-) = (1.03 +/- 0.22 +/- 0.15) x 10(-3), (0.46 +/- 0.16 +/- 0.06) x 10(-3), and (1.67 +/- 0.26 +/- 0.24) x 10(-4). For the phi phi final state, B(chi(c0,2) -> phi phi) = (0.94 +/- 0.21 +/- 0.13) x 10(-3) and (1.70 +/- 0.30 +/- 0.25) x 10(-3).

Place, publisher, year, edition, pages
2006. Vol. 642, no 3, 197-202 p.
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:uu:diva-153343DOI: 10.1016/j.physletb.2006.09.040ISI: 000242141100006OAI: oai:DiVA.org:uu-153343DiVA: diva2:416316
Available from: 2011-05-11 Created: 2011-05-11 Last updated: 2011-05-11Bibliographically approved

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