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.
出处
《高能物理与核物理》
CSCD
北大核心
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
