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.
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-Coupiing） 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.
出处
《原子与分子物理学报》
CAS
CSCD
北大核心
2006年第3期510-516,共7页
Journal of Atomic and Molecular Physics
基金
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)
关键词
ESMSV势
密耦近似
散射截面
ESMSV potential, close-coupling approximation, scattering cross sections
