Multielectron correlation effects in Xe2+ formation resulting from the photoionization of Xe+ ions

被引：13

作者：

Amusia, MY ^{[1
]}

Cherepkov, NA

Chernysheva, LV

Manson, ST

机构：

[1] Racah Inst Phys, IL-91940 Jerusalem, Israel

[2] Clark Atlanta Univ, Ctr Theoret Study Phys Syst, Atlanta, GA 30314 USA

[3] State Acad Aerosp Instrumentat, St Petersburg 190000, Russia

[4] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[5] Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 2000年 / 33卷 / 01期

关键词：

Approximation theory - Correlation methods - Electron energy levels - Ionization of gases - Photoionization - Random processes - Xenon;

D O I：

10.1088/0953-4075/33/1/105

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

It is demonstrated that the photoionization of Xe+, leading to Xe2+, is completely dominated by interchannel coupling between the strong 4d ionization channels and the valence 5s and 5p channels. Calculations were performed using the random-phase approximation with exchange (RPAE), generalized to apply to open-shell systems, which included ionization from 5p, 5s and 4d subshells in S-2, P-2 and D-2 final channels. The results showed that Hartree-Fock cross sections are not even qualitatively correct over an energy region of similar to 100 eV. Comparison with (relative) experimental data shows quite reasonable agreement.

引用

页码：L37 / L42

页数：6

共 7 条

[1]

Amusia M. Ya., 1975, Case Studies in Atomic Physics, V5, P47

[2]

AMUSIA MY, 1977, J PHYS B ATOM MOL PH, V10, P535

[3]

AMUSIA MY, 1990, ATOMIC PHOTOEFFECT

[4]

Cherepkov N. A., 1977, Bulletin of the Academy of Sciences of the USSR, Physical Series, V41, P46

[5]

KOIZUMI K, 1997, PHYS SCR, V73, P131

[6]

KOIZUMI K, 1997, COMMUNICATION

[7]

Sobelman I. I, 1963, Introduction to the Theory of Atomic Spectra

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