惰性气体氦、氖、氩原子与氢(氘、氚)分子碰撞截面的理论计算  

Theoretical calculation of cross sections for inertia gas atom He, Ne and Ar collision with H_2(D_2,T_2)

作　　者：李旭[1] 蒋德群[1] 杨向东[1] 

机构地区：[1]四川大学原子与分子物理所

出　　处：《原子与分子物理学报》2004年第4期656-658,600,共4页Journal of Atomic and Molecular Physics

基　　金：国家自然科学基金(10274055)四川省教育厅重点资助项目(2002A080)

摘　　要：原子分子相互作用在许多物理过程中都十分重要。原子分子碰撞过程中转动激发截面的研究是确定原子与分子间相互作用的理想方法,许多理论和实验工作者在这方面做了大量工作,并得到理论和实验数据。本文用密耦近似计算了惰性气体He、Ne、Kr与H2、D2、T2碰撞的弹性和转动激发截面,原子入射能量分别为0.05 eV、0.15 eV、0.20 eV和0.25 eV。The interactions between atoms and molecules undertake a very important role in many physical processes and the investigation of rotation excitation cross sections in the collisions of molecules with atom is an excellent method determing their interactions. Many theoretical and experimental researchers have done a lot of research work in this field and got plenty of theoretical and experimental data. The elastic and rotational excitation cross sections for the collision of inertia gas atoms He, Ne, Ar with H2(D2,T2) have been calculated by using the close-coupling approximation method at relative kinetic energy of 0.05 eV to 0.25 eV respectively.

关 键 词：转动激发 密耦方法 散射截面 

分 类 号：O561.5[理学—原子与分子物理]