Recoil momentum spectroscopy of slow He{sup 2+} + He and O{sup 6+} + He collisions
- Lawrence Berkeley National Lab., CA (United States)
The authors have used cold target recoil ion spectroscopy to study collisions of slow (v {approx} .40 au) He{sup 2+} and O{sup 6+} ions with He atoms. The results include differential scattering cross sections for state resolved electron capture channels and target ionization. With He{sup 2+} projectiles, single capture yielding He{sup +} ions in their ground states, shows marked oscillatory structure in the angular scattering (the first such observation for this channel in the quasimolecular regime). With O{sup 6 +} projectiles, longitudinal momentum spectra (energy {open_quotes}gain{close_quotes}) of He{sup 2+} recoil ions coincident with O{sup 4,5+} products, show nonequivalent electron final states in the true, and autoionizing, double capture channels. The differential cross sections for these channels bear on the relative importance of single transfer at two vs double transfer at one avoided crossing in the transient quasimolecule.
- OSTI ID:
- 394161
- Report Number(s):
- CONF-9605105--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 41; ISSN 0003-0503; ISSN BAPSA6
- Country of Publication:
- United States
- Language:
- English
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