Radiative decays J/ψ → η (') γ in perturbative QCD  

作　　者：金丹 杨亚东 

机构地区：[1]Institute of Particle Physics,Huazhong Normal University [2]Key Laboratory of Quark & Lepton Physics,Ministry of Education

出　　处：《Chinese Physics C》2011年第8期703-707,共5页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China (10735080,11075059)

摘　　要：With the recent investigations of the g＊g＊-η（＇） transition form factor and mixing scheme, we present an updated study of the radiative decays J/ψ→η（＇）γ in perturbative QCD. The decays are taken as a test ground for the g＊g＊-η（＇） transition form factors and the η-η＇ mixing scheme. The form factors are found to be working for glunic η＇ production and the mixing angle is constrained to be φ = 35.1°±1 0.8°.With the recent investigations of the g＊g＊-η（＇） transition form factor and mixing scheme, we present an updated study of the radiative decays J/ψ→η（＇）γ in perturbative QCD. The decays are taken as a test ground for the g＊g＊-η（＇） transition form factors and the η-η＇ mixing scheme. The form factors are found to be working for glunic η＇ production and the mixing angle is constrained to be φ = 35.1°±1 0.8°.

关 键 词：transition form factor η-η＇ mixing scheme radiative decays 

分 类 号：O572.243[理学—粒子物理与原子核物理]