Using the perturbed stationary state method, including electron translation factors, the authors have calculated electron capture cross sections for the helium-like ions Be2+ and B3+ incident on ground-state atomic hydrogen. The molecular structure calculation employs pseudo-potentials to represent the inactive K-shell electrons on the incident ions. The calculated cross sections vary rapidly in the 107 cm s-1 velocity range (E approximately 1 keV amu-1). The calculations show preferential transfer to the Be+(2s) and the B2+(2p) product states. The calculations for B3++H are in good agreement with experimental measurements of Cradall et al (1979). In addition, the calculations indicate the importance of including rotational coupling to 2 Pi states when determining state-to-state cross sections.
A. E. Wetmore et al., "Calculation Of Electron Capture Cross Sections Of Collisions Of Be ²⁺ On H," Journal of Physics B: Atomic and Molecular Physics, vol. 19, no. 10, pp. 1515 - 1525, article no. 020, IOP Publishing, Dec 1986.
The definitive version is available at https://doi.org/10.1088/0022-3700/19/10/020
International Standard Serial Number (ISSN)
Article - Journal
© 2023 IOP Publishing, All rights reserved.
01 Dec 1986