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Charge transfer in keV O{sup +}({sup 4}S,{sup 2}D,{sup 2}P)-He collisions

Journal Article · · Physical Review. A
;  [1]
  1. Department of Physics and Astronomy, and Rice Quantum Institute, Rice University, 6100 Main Street, Houston, Texas 77005-1892 (United States)
Absolute differential cross sections (DCSs) are reported for charge-transfer scattering of (1-5)-keV O{sup +}({sup 4}S) ground-state and O{sup +}({sup 2}D,{sup 2}P) metastable-state ions by helium atoms at angles between 0.2 deg. and 6.3 deg. in the laboratory frame. Estimated ground-state and metastable-state total cross sections are derived from these measurements. The present ground-state cross sections agree satisfactorily with previous measurements for energies above 2 keV and the metastable-state cross sections are consistent with the mixed-state data of Kusakabe et al. [J. Phys. Soc. Japan 59, 1987 (1990)]. The large differences between the ground- and metastable-state cross sections predicted by theory are not observed.
OSTI ID:
20633727
Journal Information:
Physical Review. A, Journal Name: Physical Review. A Journal Issue: 2 Vol. 67; ISSN 1050-2947; ISSN PLRAAN
Country of Publication:
United States
Language:
English