Theoretical support for a Ramsauer-Townsend minimum in electron-CF4 scattering

被引:27
|
作者
Isaacs, WA [1 ]
McCurdy, CW
Rescigno, TN
机构
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[2] Lawrence Livermore Natl Lab, Phys & Space Technol Directorate, Livermore, CA 94550 USA
来源
PHYSICAL REVIEW A | 1998年 / 58卷 / 01期
关键词
D O I
10.1103/PhysRevA.58.309
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We describe complex Kohn calculations for elastic e(-)-CF4, scattering at incident electron energies of 0.04-20 eV. An accurate representation of the electronic correlation effects involving target polarization is critical in the explicit demonstration of a Ramsauer-Townsend minimum. We use a set of polarized virtual orbitals to form a compact representation of closed channels in the trial scattering function to include these effects. These are the first ab initio calculations to verify the Ramsauer-Townsend minimum in CF4. We find excellent comparison between the complex Kohn results and measured differential and integral cross sections.
引用
收藏
页码:309 / 313
页数:5
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