Abstract
Total cross sections for state-selective electron capture in collisions between ions and alkali-metal atoms have been calculated by means of a three-body classical-trajectory Monte Carlo (CTMC) method using model potentials to describe the electron ionic-core interactions. Calculations have been performed for Na+-Na(28d) collisions and for N5+ and Ar8+-Cs(6s) collisions. The collision velocity range corresponds to 0.5vp/ve2, where vp is the projectile velocity in the laboratory frame and ve is the initial orbital velocity of the electron bound to the alkali-metal core. In the case of Na++Na(28d) collisions, calculations of the final n,l,m distributions show the importance of the electron-capture cross sections into states with m>1. For the case of multiply charged ion Cs(6s) collisions, a predominance of electron captures to nearly circular states (large l values) are predicted for cross sections near the maximum of the n distribution. When the e- Cs+ interaction is described by a realistic model potential, the CTMC calculations are found to be in good agreement with recent measurements of the final n values that are predominantly populated after single-electron capture. © 1990 The American Physical Society.
Recommended Citation
J. Pascale et al., "State-selective Capture In Collisions Between Ions And Ground- And Excited-state Alkali-metal Atoms," Physical Review A, vol. 42, no. 9, pp. 5305 - 5314, American Physical Society, Jan 1990.
The definitive version is available at https://doi.org/10.1103/PhysRevA.42.5305
Department(s)
Physics
International Standard Serial Number (ISSN)
1050-2947
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2023 American Physical Society, All rights reserved.
Publication Date
01 Jan 1990
