Blankenbecler-Goldberger近似及其在e^+-H激发碰撞过程中的应用

BLANKENBECLER-GOLDBERGER APPROXIMATION AND ITS APPLICATION ON e^+-H EXCITATION COLLISION

本文研究Blankenbecler-Goldberger近似(简称B-G近似)在e^+-H激发碰撞过程的应用,得到了B-G近似散射振幅与通常Glauber近似散射振幅之间的函数联系,从而使B-G近似散射振幅积分表达式得到很好的约化。利用B-G近似计算了e^+-H激发碰撞的微分截面,并与其他方法的结果进行了比较。

Blankenbecler-Goldberger approximation(abbr. B-G)and its application on e+-H excitation collision have been studied. The function connection between B-G scattering amplitude and Glauber scattering amplitude has been obtained, so that the integrate representation of B-G scattering amplitude can be reduced well.The differential cross sections of e+-H excitation collision have been calculated and compared with the results from other methods.