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| Study of ππ final state interactions in ψ(2S)→π+π-J/ψ | |
| 作者单位： | GUO Yu-Ping(Department of Physics and Institute of Theoretical Physics, Nanjing Normal University,Nanjing,210097,China;Institute of High Energy Physics, Chinese Academy of Sciences,P.O.Box 918(1),Beijing,100049,China);PING Rong-Gang(Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918(1),Beijing 100049,China);XIAO Zhen-Jun(Department of Physics and Institute of Theoretical Physics, Nanjing Normal University,Nanjing,210097,China) |
| 基金项目： | 国家自然科学基金，Youth Innovation Project of IHEP |
| 摘 要： | The π+π- transition of heavy quarkonia in decay ψ(2S) ψ(2S)→π+π-J/ψ is studied. With the BESII data on the decay ψ(2S)→π+π-J/ψ, we update the values of coupling constants (gi) and chromopolarizability (аψ(2S)J/ψ) in this process. |
| 关 键 词： | π+π- transition ψ(2S)→π+π-J/ψ decays |
| 收稿时间： | 2009-04-05 |
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