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 language | English |
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Pages (from-to) | 217-221 |
Number of pages | 5 |
Journal | Chemical Physics Letters |
Volume | 149 |
Issue number | 2 |
DOIs | |
Publication status | Published - Aug 12 1988 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry