| He-HF碰撞体系相互作用势及散射截面的理论研究 |
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| 引用本文： | 余春日,汪荣凯.He-HF碰撞体系相互作用势及散射截面的理论研究[J].原子与分子物理学报,2006,23(3):510-516. |
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| 作者姓名： | 余春日 汪荣凯 |
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| 作者单位： | 1. 安庆师范学院物理与电气工程学院,安庆,246011
2. 贵州师范大学理学院,贵阳,550001 |
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| 基金项目： | 国家安全重大基础研究项目(5134202-04)，安徽省自然科学基金，国家自然科学基金(10574096)，高等学校博士点专项科研基金(20020610001) |
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| 摘 要： | 首先以与散射数据和实验结果符合较好的BFW势为依据,拟合了He-HF碰撞体系相互作用的ESMSV势,并与其它势进行比较,验证了拟合势的可靠性;然后采用密耦近似方法计算了不同势下He原子和基态HF分子碰撞的散射截面,并将计算结果与散射实验数据作了比较;最后研究了该碰撞体系散射截面的变化规律.研究表明:拟合势能较好地描述He-HF系统相互作用的基本特征.
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| 关 键 词： | ESMSV势 密耦近似 散射截面 |
| 文章编号： | 1000-0364（2006）03-0510-07 |
| 收稿时间： | 2005-03-23 |
| 修稿时间： | 2005-03-23 |
Theoretical study of the interaction potential and scattering cross Sections for He-HF system |
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| YU Chun-ri,WANG Rong-kai.Theoretical study of the interaction potential and scattering cross Sections for He-HF system[J].Journal of Atomic and Molecular Physics,2006,23(3):510-516. |
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| Authors: | YU Chun-ri WANG Rong-kai |
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| Abstract: | The interaction ESMSV potential of He-HF system is fitted on the basis of BFW potential,which is corresponded with scattering data and existing experiment results.And reliability of the fitted potential is confirmed by comparing it with other potentials.Then the scattering cross sections for collisions between He atoms and HF molecules of the ground state under different potentials are calculated by using CC(Close-Coupling) method,and furthermore the chancing regularities of collision cross sections are summed up.At the same time,the result of the calculation is compared with the existing experimental data.Investigation shows that our fitted potential is characteristic of expressing interaction better for He-HF system. |
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| Keywords: | ESMSV potential close-coupling approximation scattering cross sections |
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