BEPC上的J/φ物理和推广的矩分析  

J/φ Physics at DEPC and the Generalized Moment Analysis

作　　者：郁宏[1] 

机构地区：[1]中国科学院高能物理研究所,北京100039

出　　处：《高能物理与核物理》1991年第3期265-278,共14页High Energy Physics and Nuclear Physics

基　　金：国家自然科学基金会

摘　　要：北京正负电子对撞机(BEPC)和北京谱仪(BES)至1990年8月份已获取3×10~6J/φ事例并作了初步分析,预计1991年将可得到1—2×10~7J/φ事例。本文评述了J/φ衰变中可能出现的新强子态,以及用推广的矩分析讨论了如何确定这些新强子态的自旋-宇称。Three million J/ψ events have been obtained at Beijing Electron and Positron Collider (BEPC) and Beijing Spectrometer (BES) by Aug. 1990 and some preliminary analysis have been performed. It is expected that 1--2×10~7 J/ψ events will be accumulated during 1991. In this paper we give a review about some new hadron states which may appear in J/ψ decays and how to determine the spin-parity of these new hadron states by using the generalized moment analysis.

关 键 词：BEPC J/Ψ粒子 矩分析 强子 衰变 

分 类 号：O572.3[理学—粒子物理与原子核物理]