标量介子衰变硬散射振幅的计算  

Calculation of the Amplitude of Hard Scattering from the Decays of Scalar Mesons

作　　者：张清雅 

机构地区：[1]西南大学物理学院,重庆400700

出　　处：《科技创新与应用》2018年第34期18-19,共2页Technology Innovation and Application

摘　　要：标量介子的衰变提供了关于夸克胶子动力学的有用信息,多年来一直是吸引人们兴趣的课题,夸克模型与QCD理论虽然取得了显著成就,但在轻标量介子的内部组成成分中,一直还没有准确的定论。文章便在假定标量介子的主要成分为夸克-反夸克束缚态的情况下,根据微扰QCD的因子化方案,计算标量介子衰变硬散射振幅。The decay of scalar mesons provides useful information about quark gluon dynamics, which has been a subject of interest for many years. Although the quark model and QCD theory, have made remarkable achievements, the internal components of light scalar mesons. There has been no definitive conclusion. Assuming that the main component of the scalar meson is the quark-antiquark bound state, this paper calculates the amplitude of the scalar meson decay hard scattering according to the faetorization scheme of the perturbation QCD.

关 键 词：衰变 因子化 计算 

分 类 号：O572.33[理学—粒子物理与原子核物理]