On the use of the unitarised Born approximation in electron collisions with polar molecules
On the use of the unitarised Born approximation in electron collisions with polar molecules
复制标题
关于酉化玻恩近似在电子与极性分子碰撞中的应用
DOI：
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发表时间：
1981
期刊：
影响因子：
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通讯作者：
L. Collins
中科院分区：
文献类型：
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作者：
N. Padial;D. W. Norcross;L. Collins
本文研究了用么正化Born（B 11）近似表示电子-极性-分子碰撞T矩阵元的有效性。对于中间和高值的角动量（通常是I2 - 5），B 11的结果是在一个更精细的密耦合计算与那些非常一致。该方法为计算极性分子截面完备公式中所需的高角动量T矩阵元提供了一种有效、经济的方法。该方法具有的优点，在固定点偶极子技术，从上面的偶极子的潜在时刻的贡献，可以简单地包括这样的可比计划。
The validity of the unitarised Born (B 11) approximation for representing the T-matrix elements for electron-polar-molecule collisions is investigated for a number of polar systems. For intermediate and high values of the angular momentum (usually I2 5), the B 11 results are in excellent agreement with those of a more elaborate close-coupling calculation. The method provides an efficient, economical means for calculating the higher angular momenta T-matrix elements that are needed in the completion formulae for polar-molecule cross sections. The methods have an advantage over such comparable schemes as the fixed-point-dipole technique in that contributions from potential moments above the dipole can be simply included.