Electron capture into few-electron heavy ions: Independent particle model

A. Surzhykov, U. Jentschura, T. Stöhlker, S. Fritzsche

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We apply the density matrix theory to re-investigate the radiative electron capture into heavy ions with one valence electron. Attention has been paid particularly to the magnetic sublevel population of the residual ions, as described in terms of alignment parameters. Simple method, based on an independent particle model, which takes into account the Pauli principle, is proposed for evaluating the alignment of the excited ionic states. By making use of this method, detailed calculations are performed for electron capture into (initially) hydrogen-like and lithium-like europium, gold and uranium ions, and are compared with the results of the multiconfiguration Dirac-Fock approach.As seen from the calculations and from the comparison with available experimental results, the independent particle model provides a good estimate for the alignment parameters of few-electron heavy ions. Therefore, our simple model may help to understand the basic properties of the X-ray emission from heavy, few-electron ions without the need for invoking sophisticated MCDF calculations.

Original languageEnglish
Pages (from-to)27-36
Number of pages10
JournalEuropean Physical Journal D
Volume46
Issue number1
DOIs
Publication statusPublished - Jan 2008

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electron capture
heavy ions
alignment
ions
electrons
matrix theory
europium
uranium
lithium
gold
valence
hydrogen
estimates
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Atomic and Molecular Physics, and Optics

Cite this

Electron capture into few-electron heavy ions : Independent particle model. / Surzhykov, A.; Jentschura, U.; Stöhlker, T.; Fritzsche, S.

In: European Physical Journal D, Vol. 46, No. 1, 01.2008, p. 27-36.

Research output: Contribution to journalArticle

Surzhykov, A. ; Jentschura, U. ; Stöhlker, T. ; Fritzsche, S. / Electron capture into few-electron heavy ions : Independent particle model. In: European Physical Journal D. 2008 ; Vol. 46, No. 1. pp. 27-36.
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