摘要
用Tang -Toennies势模型和公认精确度较高的密耦近似方法计算了不同能量下惰性气体原子Ne与H2 及其同位素D2 、T2 替代碰撞体系的转动激发碰撞截面 .通过分析Ne H2 、D2 、T2 各碰撞体系分波截面的差异 ,总结出在H2 分子的对称同位素替代情形下Ne H2 (D2 、T2 )碰撞体系分波截面的变化规律 .结果表明 ,体系的约化质量及入射原子相对碰撞能量的变化均给体系的碰撞截面带来不同程度的影响 .
In this paper, Tang-Toennies potential and close-coupling equation are applied to the Ne-H 2(D 2、T 2) system, the rotational excitation cross sections at different incident energy are calculated. By analyzing the differences of these partial wave cross sections ,the change patterns of the partial wave cross sections and the influence on the partial wave cross sections because of the variations in the mass of systems and the relative kinetic energy of incoming atoms for symmetric isotopically substituted systems Ne-H 2?D 2?T 2 are obtained.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
2002年第6期628-631,共4页
Journal of Sichuan Normal University（Natural Science）
基金
四川省教育厅重点科研基金资助项目
