摘要
利用ＢＥＳ上取得的９．０×１０6Ｊ／ψ数据，进行了系统的Ｊ／物理分析．证实了（２２３０）的存在，并首次发现Ｅ（２２３０）的非奇异衰变模式．测量了ｆ０（９８０）、ｆ２（１２７０）的共振参数和极化．对Ｊ／→Ｋ＋Ｋ－过程短分析的结果表明ｆＪ（１７１０）是含有０＋＋和２＋＋两个态的宽结构．采用分波法测定了（１４４０）、ｆ０（１５００）的自旋宇称，得到它们的主要衰变模式．
Based on 9.0ｘ106 J / data collected at BES, a systematic physicsanalysis has been Performed. We confirmed the existence of (2230) in J/ -yKKand observed for the first time the non-strange decay modes (2230) ,and pp. The resonance and polarization parameters of fo (980) and f2 (1270) weremeasured. The moment stUdy on J/ -yK+ K- revealed that the controversial f,(1710)is composed of tWo states, a 0+ + and a 2+ +. With the help of PWA method, thespin-Parities for n(1440) and h(1500) were obtained, and their main decay modeswere found.
出处
《高能物理与核物理》
CSCD
北大核心
1999年第2期97-102,共6页
High Energy Physics and Nuclear Physics
