Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9860714 | Physics Letters B | 2005 | 7 Pages |
Abstract
Decays of Ïc0,2âÏÏ are observed for the first time using a sample of 14.0Ã106Ï(2S) events collected with the BESII detector. The branching ratios are determined to be B(Ïc0âÏÏ)=(2.29±0.58±0.41)Ã10â3 and B(Ïc2âÏÏ)=(1.77±0.47±0.36)Ã10â3, where the first errors are statistical and the second systematic. The significances of the two signals are 4.4Ï and 4.7Ï, respectively.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
BES Collaboration BES Collaboration, M. Ablikim, J.Z. Bai, Y. Ban, J.G. Bian, X. Cai, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Y.B. Chen, S.P. Chi, Y.P. Chu, X.Z. Cui, Y.S. Dai, Z.Y. Deng, L.Y. Dong, B.S. Zou,