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Radiative decays J/ψ → η(')γ in perturbative QCD
引用本文:金丹,杨亚东.Radiative decays J/ψ → η(')γ in perturbative QCD[J].中国物理 C,2011,35(8).
作者姓名:金丹  杨亚东
作者单位:1. Institute of Particle Physics, Huazhong Normal University, Wuhan 430079, China;;2. Key Laboratory of Quark & Lepton Physics, Ministry of Education, Wuhan 430079, China
基金项目:Supported by National Natural Science Foundation of China (10735080,11075059)
摘    要:With the recent investigations of the g*g*(') transition form factor and η-η' 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*(') 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°±0.8°.

关 键 词:transition  form  factor  η-η  radiative  decays
收稿时间:2010-10-8
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