Study of ππ final state interactions in ψ（2S） →π^＋π^-J/ψ

来源 :中国物理C：英文版 | 被引量 : 0次 | 上传用户：lbw001001

【摘要】

：

The π+π- transition of heavy quarkonia in decay 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 co

【作者】

：

郭玉萍平荣刚肖振军

【机构】

：

DepartmentofPhysicsandInstituteofTheoreticalPhysics,InstituteofHighEnergyPhysics

【出处】

：

中国物理C：英文版

【发表日期】

：

2009年4期

【关键词】

：

相互作用约翰逊状态偶合常数观念更新转型期焦耳衰变 π^＋π^- transition ψ（2S） →π^＋π^-J/ψ decays coup

【基金项目】

：

Supported by NSFC, and Youth Innovation Project of IHEP

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The π+π- transition of heavy quarkonia in decay 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 (αψ(2S)J/ψ) in this process.

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Study of ππ final state interactions in ψ（2S） →π^＋π^-J/ψ

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