He与HD、HT、DT碰撞的转动激发研究

The study of rotational excitation of collision between He and HD,HT,DT

采用Tang Toennies势模型 ,通过坐标变换 ,得到了氦原子与氢的非对称同位素替代分子体系在质心坐标系中的势能函数。在此基础上 ,计算了上述体系的低能碰撞转动激发截面。文中最后讨论了氦原子与氢的非对称同位素替代体系碰撞的微分截面的变化规律。

We have employed Tang-Toennies potential model to decribe the colliding system between helium atom and an asymmetric isotopically substituted hydrogen molecule, and to obtain the potential surface of the system in the center-of-mass system by proper coordinate transformation. Then we have calculated the rotational excitation cross sections in the framework of close coupling approximation and discussed the effect of asymmetric isotope substitution on the differential cross section.