Suppressed electron capture in slow O sup + ( sup 4 S degree , sup 2 D degree , sup 2 P degree )-He collisions

Journal Article · Wed Apr 01 04:00:00 EST 1992 · Physical Review A. General Physics; (United States)

OSTI ID:7105611

Wolfrum, E; Schweinzer, J; Winter, H ^[1]

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1. Institut fuer Allgemeine Physik, Technische Universitaet Wien, Wiedner Hauptstrasse 8-10, A-1040 Wien (Austria)

Total cross sections for single-electron capture from He by keV O{sup +} {sup 2}{ital D}{degree} and {sup 2}{ital P}{degree} metastable ions turned out to be much smaller than for O{sup +} {ital S}{degree} ground state ions, despite a larger energy defect for the latter reaction. We suggest that this unexpected behavior is caused by efficient suppression of electron capture into either metastable ion due to a competing, collisionally induced inelastic transition into the companion metastable state.

• OSTI ID: 7105611
• Journal Information: Physical Review A. General Physics; (United States), Journal Name: Physical Review A. General Physics; (United States) Vol. 45:7; ISSN 1050-2947; ISSN PLRAA
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ATOM COLLISIONS
BEAMS
CAPTURE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY LEVELS
ENERGY RANGE
EXCITED STATES
FLUIDS
GASES
GROUND STATES
HELIUM
INHIBITION
ION BEAMS
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
KEV RANGE
METASTABLE STATES
NONMETALS
OXYGEN IONS
RARE GASES
TOTAL CROSS SECTIONS