惰性气体原子与氢的同位素分子T_2碰撞分波截面计算

A study of the partial wave cross section for the different energy inert gases atom and T_2 collision

用密耦计算方法及T·T(Tang-Toennies)势模型分别计算了入射能量E=0·05eV、0·15eV、0·25eV时He、Ne、Ar、Kr、Xe-T2碰撞体系的00-00弹性碰撞和00-02非弹性碰撞分波截面,结果表明:对00-00弹性碰撞,分波截面随量子数J的增加不断振荡,并随入射原子的相对碰撞能量的变化,振荡极大值的位置、收敛分波数等均有不同的变化。

The partial wave cross sections of “00-00” elastic collisions and “00-02” unelastic collisions of the He,Ne, Ar, Kr,Xe-T2 systems at energy 0.05 eV,0.15 eV and 0.25 eV have been calculated using close-coupling equation and T-T potential. The results show that the partial wave cross sections of the “00-00” elastic collision reveal oscillatory behavior with J increasing, and the maximum is floating with the relative kinetic energy increasing of incoming atoms. The convergent partial wave number also behaves oscillatory.