| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725633 | Physics Letters B | 2010 | 7 Pages |
Abstract
Based on 58Ã106J/Ï events collected by BESII, the decay J/ÏâK±KSÏâÏ0 is studied. In the invariant mass spectrum recoiling against the charged Kâ(892)±, the charged κ particle is found as a low mass enhancement. If a Breit-Wigner function of constant width is used to parameterize the κ, its pole locates at (849±77â14+18)âi(256±40â22+46) MeV/c2. Also in this channel, the decay J/ÏâKâ(892)+Kâ(892)â is observed for the first time. Its branching ratio is (1.00±0.19â0.32+0.11)Ã10â3.
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. Bai, Y. Ban, X. Cai, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, X.D. Chen, Y.B. Chen, Y.P. Chu, Y.S. Dai, Z.Y. Deng, S.X. Du, J. Fang, B.S. Zou,