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不同能量的氦原子与同位素分子H2(D2,T2)碰撞分波截面的理论计算
引用本文:沈光先,汪荣凯,令狐荣锋,杨向东. 不同能量的氦原子与同位素分子H2(D2,T2)碰撞分波截面的理论计算[J]. 物理学报, 2008, 57(1): 155-159
作者姓名:沈光先  汪荣凯  令狐荣锋  杨向东
作者单位:(1)贵州师范大学理学院,贵阳 550001; (2)贵州师范大学理学院,贵阳 550001;四川大学原子与分子物理研究所,成都 610065; (3)四川大学原子与分子物理研究所,成都 610065
基金项目:国家自然科学基金(批准号:10574096),高等学校博士点专项科研基金(批准号:20050610010),贵州省教育厅自然科学重点项目(批准号:2005105),贵州省优秀科技教育人才省长基金(批准号:黔省专合字(2006)113号),贵州师范大学青年教师科研基金(批准号:校科青2004-1-12)资助的课题.
摘    要:用Tang-Toennies势模型和密耦近似方法计算了不同能量下惰性气体原子He与H2及其同位素D2,T2替代碰撞体系的振转激发碰撞截面. 通过分析He-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He-H2(D2,T2)碰撞体系分波截面随量子数和体系关键词:散射截面密耦方法同位素

关 键 词:散射截面  密耦方法  同位素
文章编号:1000-3290-(2008)01-0155-05
收稿时间:2007-03-08
修稿时间:2007-05-11

Theoretical calculation of the partial cross section in He-H2(D2,T2) collisions
Shen Guang-Xian,Wang Rong-Kai,Linghu Rong-Feng and Yang Xiang-Dong. Theoretical calculation of the partial cross section in He-H2(D2,T2) collisions[J]. Acta Physica Sinica, 2008, 57(1): 155-159
Authors:Shen Guang-Xian  Wang Rong-Kai  Linghu Rong-Feng  Yang Xiang-Dong
Abstract:Tang-Toennies potential model and close-coupling method were applied to the He-H2(D2,T2) system,and the vibrational and rotational excitation cross sections at different incidence energy have been calculated.By analyzing the differences of these partial wave cross sections, the change rules of the partial wave cross sections with increase of quantum number, and with change of reduced mass of symmetric isotopic substituted system have been obtained. Based on the calculation, influence on the cross sections exerted by the variations in the reduced mass of systems and in the relative incoming energy of incident atom is discussed.
Keywords:cross section   close-coupling method   isotope
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