Abstract
Measurements of the absolute total cross section for single-electron capture in collisions of with ground-state atomic deuterium are reported in the energy range 4.6–428 eV/amu. These measurements represent the highest charge state yet reported using the Oak Ridge National Laboratory ion-atom merged-beams apparatus. The electron-capture cross section for is observed to decrease at lower energies, in contradiction to what is expected from a popular simple model and speculation from previous measurements for highly charged ions with multielectron cores. The observed low-energy behavior is interpreted using coupled-channel molecular-orbital hidden-crossing calculations for
- Received 6 July 2000
DOI:https://doi.org/10.1103/PhysRevA.63.012717
©2000 American Physical Society