惰性气体原子与氢(氘、氚)分子碰撞微分截面研究  

A Study on the Differential Cross Sections for Inert Gasand H_2(D_2、T_2) Collision System

作　　者：邓学儒[1] 李旭[2] 蒋德琼[2] 

机构地区：[1]西华大学应用物理研究所,四川成都610039 [2]四川师范大学物理系,四川成都610066

出　　处：《四川师范大学学报（自然科学版）》2005年第3期332-335,共4页Journal of Sichuan Normal University（Natural Science）

基　　金：国家自然科学基金(10274055);四川省教育厅重点科研基金资助项目

摘　　要：用Tang Toennies势模型和较高精确度的密耦(Close Coupling)近似方法,计算了E=0.05eV整簇惰性气体原子与氢(氘、氚)分子碰撞体系00 00弹性碰撞及00 02非弹性碰撞微分截面,得到了惰性气体原子与H2及其对称同位素替代碰撞体系微分截面的变化规律.结果表明,微分截面随体系的约化质量和角度的增加而变化.Tang-Toennies potential model and close-coupling approximation are applied to the inert gas atom and H_2(D_2?T_2) Collision system. The differential cross sections of 00-00 elastic collision and 00-02 nonelastic collision excitation are calculated when collision energy is E=0.05 eV. The change patterns of the differential cross sections for inert gas atom and H_2?D_2?T_2 Collision system have been obtained. The results show that the diffrential cross-section changes with the increase of the system's reduced mass and angles.

关 键 词：密耦方法 微分截面 同位素替代 

分 类 号：O413[理学—理论物理]