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赝标介子到矢量介子的半轻转变

Aug 10, 2022, 7:54 PM
6m

Speaker

Mr Huiyu Xing (Nanjing University)

Description

我们使用对称性保持的接触相互作用模型,系统地分析了十二个赝标介子到矢量介子的半轻衰变过程:D → ρ, Ds →K*, D →K*, Ds →Φ, Bc →D*, B →D*, Bs →Ds*, Bc →J/Ψ, Bc →Bs*, Bc →B*,这是研究该半轻衰变过程首个统一的理论。接触相互作用模型的优势在于代数简洁、参数少,可对南部-戈德斯通模式的系统提供很好的描述。通过对比发现,接触相互作用模型的结果与实验或其它可靠理论相符,因此有望为赝标到矢量半轻衰变的分支比提供很好的预言。同时,我们也计算了跃迁形状因子,作为强子内部结构的体现,它反映了自然界两大质量产生方式——希格斯机制和演生机制的相互影响,为演生质量的研究提供了重要的途径。

Primary author

Mr Huiyu Xing (Nanjing University)

Co-author

Prof. Craig Roberts (Nanjing University)

Presentation materials

There are no materials yet.