J/Ψ与Ψ(2S)的轴矢-赝标介子衰变研究

STUDY OF J/Ψ AND Ψ(2S) DECAYS TO AXIAL-VECTOR PLUS PSEUDOSCALAR MESONS

北京谱仪合作组研究了粲夸克偶素J Ψ与Ψ(2S)的末态为轴矢介子与赝标介子组合的准二体衰变 ,观察到若干与朴素理论预期明显分歧的异常表现 ,这些结果引起了国际理论界的兴趣 。

In studying the J/Ψ and Ψ(2S) decays to axial-vector and pseudoscalar mesons, the Beijing Spectrometer Collaboration has observed certain anomalies, in striking deviation from the naive theoretical expectations. This has attracted considerable interest, but as yet there is no compelling theoretical explanation.