摘要
用推广的矩分析法对J/强子衰变产生的θ(1720)宽共振峰的结构进行了研究。对于J/→ωθ(1720)过程,由于f′_2(1525)的产生率极低,可不必考虑f′_2(1525)的混入,而对于J/→φθ(1720)过程,由于f′_2(1525)有相当的产生率,所以要考虑f′_2(1525)的影响,对这两种过程,加上J/辐射衰变产生θ(1720)过程的研究,将会对θ(1720)共振峰的结构有更好的了解。
In this paper the structure of the wide resonance θ(1720) produced in J/Ψ hadronic decays is studied by using the generalized moment analysis. Since the production ratio of the f'_2 (1525) is very small in the process J/Ψ→ωθ(1720) we may neglect the influence of the f'_2 (1525). Whereas the production ratio of the f'_2 (1525) is larger in the process J/Ψ→φθ (1720), we must consider the coherence effects of the f'_2(1525). From the studies of the two processes and the corresponding J/Ψ radiative decay we are able to understand the structure of the wide resonance θ(1720) better.
出处
《高能物理与核物理》
CSCD
北大核心
1993年第7期601-604,共4页
High Energy Physics and Nuclear Physics
基金
国家自然科学基金 中国科学院资助
