Possible positronium formation in the collisions of positrons with calcium positive ions

M. A. Abdel-raouf

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The collisions of positrons with calcium positive ions (20Ca+) are treated under the assumption that the elastic and positronium formation channels are open. A one-valence-electron model for the target, based on the Clementi-Roetti Slater-type basis functions, as well as a coupled-static approach allowing for the polarisation of the positroniums, are used for calculating the partial cross sections of eight partial waves (0 ≤ l ≤ 7, where l is the total angular momentum). The calculations are carried out for 28 values of the incident energy lying between the positronium formation threshold (at 4.52 eV) and extending to a wide region above the ionisation threshold of Ca+ (at 11.32 eV).

Original languageEnglish
Pages (from-to)217-221
Number of pages5
JournalChemical Physics Letters
Volume149
Issue number2
DOIs
Publication statusPublished - Aug 12 1988
Externally publishedYes

ASJC Scopus subject areas

  • General Physics and Astronomy
  • Physical and Theoretical Chemistry

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