He-HI碰撞的转动激发分波截面

基于作者所发展的分子间相互作用势，采用密耦方法计算了入射He原子能量分别为40,75和100　meV时与HI分子碰撞的弹性和非弹性分波截面.研究表明：激发分波截面比弹性分波截面收敛得快；激发态越高，激发分波截面收敛得越快；能量越高，激发分波截面收敛得越慢. 关键词： 分波截面 密耦方法 He-HI复合物

The rotational excitation partial cross sections for the He-HI collisions

The close coupling approach is used to calculate the elastic and inelastic partial cross sections for collisions of helium atoms with hydrogen iodide molecules based on the intermolecular potential introduced in our previous research. The calculations are performed separately at the incident energies of 40, 75 and 100 meV. This study indicates that the excitation partial cross sections converge faster than the elastic partial cross section for each of the incident energies considered here. The excitation partial cross sections converge more rapidly for the higher excited states, and more slowly for the higher incident energies.