| He-BH碰撞体系微分截面的理论计算 |
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| 引用本文： | 汪荣凯,沈光先,杨向东.He-BH碰撞体系微分截面的理论计算[J].物理学报,2009,58(8):5335-5341. |
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| 作者姓名： | 汪荣凯 沈光先 杨向东 |
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| 作者单位： | (1)贵州师范大学化学与材料科学学院,贵阳 550001；贵州师范大学原子与分子物理研究所,贵阳 550001; (2)贵州师范大学物理与电子科学学院,贵阳 550001；四川大学原子与分子物理研究所,成都 610065；贵州师范大学原子与分子物理研究所,贵阳 550001; (3)四川大学原子与分子物理研究所,成都 610065 |
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| 基金项目： | 国家自然科学基金（批准号：10574096）和高等学校博士学科点专项科研基金（批准号：20050610010）资助的课题. |
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| 摘 要： | 用公认精确的密耦近似方法计算了入射能量从25至150 meV时，He原子与基态BH分子碰撞的弹性微分截面、非弹性微分截面和总微分截面，进一步讨论了微分截面的变化趋势及特征.计算结果表明：He-BH碰撞体系的总微分截面具有原子与双原子分子散射的一般规律和特征；随着入射能量的增加，低转动激发态-态微分截面在大角区的散射振荡现象会更加明显.
关键词：
He-BH复合物
相互作用势
密耦近似
微分截面
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| 关 键 词： | He-BH复合物 相互作用势 密耦近似 微分截面 |
| 收稿时间： | 2008-08-18 |
Theoretical calculation of the differential cross section for He-BH collision system |
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| Wang Rong-Kai,Shen Guang-Xian,Yang Xiang-Dong.Theoretical calculation of the differential cross section for He-BH collision system[J].Acta Physica Sinica,2009,58(8):5335-5341. |
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| Authors: | Wang Rong-Kai Shen Guang-Xian Yang Xiang-Dong |
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| Abstract: | For the first time, the elastic, inelastic and total differential cross sections for collision between He atom and the ground state of BH molecule have been calculated by using accepted exact close-coupling approximation method. The calculation is performed at the incident energies from 25 to 150 meV. Further, the change tendency and characteristics of the differential cross sections have been discussed. The calculated results show that the total differential cross section is the general rule and characteristics of collision between an atom and a diatomic molecule, the phenomenon of the scattering oscillation at large angles is more evident along with increase of the incident energy for low-lying rotational excitation state-to-state differential cross sections in He-BH collision system. |
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| Keywords: | He-BH complex interaction potential close coupling approximation differential cross section |
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