Single- and double-electron capture in collisions of multiply charged He{sup 2+}, C{sup q+} (q = 4,5), and Ar{sup q+} (q = 6,8) ions with H{sub 2} molecules at eV collision energies

Journal Article · Wed Dec 01 04:00:00 EST 1993 · Bulletin of the American Physical Society

OSTI ID:67911

Kimura, M ^[1]; Shimakura, N; Lane, N F ^[2]; Kravis, S; Shimamura, I; Awaya, Y ^[3]; Okuno, K ^[4]

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1. Argonne National Lab., IL (United States)
2. Rice Univ., Houston, TX (United States)
3. RIKEN, Tokyo (Japan)
4. Tokyo Metropolitan Univ. (Japan)

Recent experiments suggest that double-electron capture dominates, single-electron capture in He{sup 2+} + H{sub 2} collisions below 1 keV while single electron-capture becomes dominant above this energy. Another experiment suggests that double-electron capture is always the dominant process in Ar{sup q+} + H{sub 2} collisions in the energy region from 0.1 eV to a few keV. The authors theoretical results obtained by using a molecular orbital expansion method clearly confirm these experimental findings and provide a theoretical rationale based on adiabatic potentials and dynamic analysis.

• Research Organization: Argonne National Laboratory (ANL), Argonne, IL
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 67911
• Report Number(s): CONF-9310400--
• Journal Information: Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 13 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ARGON IONS
CARBON IONS
ELECTRON CAPTURE
HELIUM IONS
HYDROGEN
ION-MOLECULE COLLISIONS
MOLECULAR IONS