| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1853643 | Physics Letters B | 2008 | 7 Pages |
Abstract
The decays of J/ψJ/ψ and ψ(2S)ψ(2S) to nKS0Λ¯+c.c. are observed and measured for the first time, and the perturbative QCD “12%” rule is tested, based on 5.8×1075.8×107J/ψJ/ψ and 1.4×1071.4×107ψ(2S)ψ(2S) events collected with BESII detector at the Beijing Electron–Positron Collider. No obvious enhancement near nΛ¯ threshold in J/ψ→nKS0Λ¯+c.c. is observed, and the upper limit on the branching ratio of J/ψ→KS0X,X→nΛ¯ is determined.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
M. Ablikim, J.Z. Bai, Y. Ban, X. Cai, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Y.B. Chen, Y.P. Chu, Y.S. Dai, L.Y. Diao, Z.Y. Deng, Q.F. Dong, S.X. Du, J. Fang, S.S. Fang, C.D. Fu, C.S. Gao, Y.N. Gao, K. Götzen, S.D. Gu, Y.T. Gu, Y.N. Guo,