Anomalous final-state distributions of electrons captured from directed Rydberg states
- Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)
A classical model of singly charged ion collisions with Rydberg atoms in linear Stark states directed toward the oncoming ion beam predicts a bimodal distribution of final states resulting from electron capture. At a reduced velocity {tilde v}=v{sub ion}/v{sub Bohr}=0.45, the calculated energy distribution of captured electrons peaks near the target binding energy E{sub i}, but has a second peak at energies roughly E{sub i}/4. Analysis of the impact-parameter dependence of the capture probabilities indicates that the second peak arises from three-swap capture events. The decrease in binding energy of the captured electrons is attributed to excitation via united-atom rotational coupling. {copyright} {ital 1998} {ital The American Physical Society}
- OSTI ID:
- 565863
- Journal Information:
- Physical Review A, Journal Name: Physical Review A Journal Issue: 1 Vol. 57; ISSN 1050-2947; ISSN PLRAAN
- Country of Publication:
- United States
- Language:
- English
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