First observation of Xcj → ωω decays
In: Physics letters. Section B, Jg. 630 (2005), Heft 1-2, S. 7-13
academicJournal
- print, 14 ref
Zugriff:
Decays of Xc0,2 → ωω are observed for the first time using a sample of 14.0 x 106 ψ(2S) events collected with the BESII detector. The branching ratios are determined to be B(Xc0 → ωω) = (2.29±0.58±0.41) x 10-3 and B(Xc2 → ωω) = (1.77 ± 0.47 ± 0.36) x 10-3, where the first errors are statistical and the second systematic. The significances of the two signals are 4.4σ and 4.7σ, respectively.
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First observation of Xcj → ωω decays
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Autor/in / Beteiligte Person: | Collaboration, BES |
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Zeitschrift: | Physics letters. Section B, Jg. 630 (2005), Heft 1-2, S. 7-13 |
Veröffentlichung: | Amsterdam: Elsevier Science, 2005 |
Medientyp: | academicJournal |
Umfang: | print, 14 ref |
ISSN: | 0370-2693 (print) |
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