Time-dependent spin-density-functional-theory description of He+-He collisions

被引：18

作者：

Baxter, Matthew ^{[1
]}

Kirchner, Tom ^{[1
]}

Engel, Eberhard ^{[2
]}

机构：

[1] York Univ, Dept Phys & Astron, Toronto, ON M3J 1P3, Canada

[2] Goethe Univ Frankfurt, Ctr Sci Comp, D-60438 Frankfurt, Germany

来源：

PHYSICAL REVIEW A | 2017年 / 96卷 / 03期

基金：

加拿大自然科学与工程研究理事会;

关键词：

SINGLE-ELECTRON-CAPTURE; CROSS-SECTIONS; HELIUM-ATOMS; DOUBLE-IONIZATION; CHARGE-TRANSFER; IONS; HYDROGEN; IMPACT; GASES; EXCITATION;

D O I：

10.1103/PhysRevA.96.032708

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Theoretical total cross-section results for all ionization and capture processes in the He+-He collision system are presented in the approximate impact energy range of 10-1000 keV/amu. Calculations were performed within the framework of time-dependent spin-density functional theory. The Krieger-Li-Iafrate approximation was used to determine an accurate exchange-correlation potential in the exchange-only limit. The results of two models, one where electron translation factors in the orbitals used to calculate the potential are ignored and another where partial electron translation factors are included, are compared with available experimental data as well as a selection of previous theoretical calculations.

引用

页数：9

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