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Number of results

Journal

2014 | 12 | 3 | 192-202

Article title

Four-body treatment of the K-shell positronium formation from multi-electron atoms

Content

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Languages of publication

EN

Abstracts

EN
The four-body Coulomb-Born distorted-wave approximation with correct boundary conditions (CBDW-4B) is applied to the K-shell positronium formation from multi-electron atoms at intermediate and high impact energies. In the present approach, both K-shell electrons are treated as active electrons. For collisions of positrons with helium, carbon, and neon atoms, both the post and prior forms of the transition amplitude are calculated and the corresponding differential and integral cross sections are compared with the results of the three-body version of the formalism (CBDW-3B). In order to investigate the effects of the static electronic correlations on the process, initial bound states of the active electrons in helium atoms are described by Hylleraas and Silverman wave functions. Also for positronium formation from helium atoms the obtained cross sections are compared with the available experimental data and also with the results of the other theories.

Publisher

Journal

Year

Volume

12

Issue

3

Pages

192-202

Physical description

Dates

published
1 - 3 - 2014
online
13 - 3 - 2014

Contributors

  • Department of Physics and Isfahan Quantum Optics Group(IQOG), Faculty of Science, University of Isfahan, Isfahan, 81746-73441, Iran
  • Department of Physics and Isfahan Quantum Optics Group(IQOG), Faculty of Science, University of Isfahan, Isfahan, 81746-73441, Iran

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_2478_s11534-014-0436-0
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