Differential cross sections for state-selective electron capture by low-energy Ar[sup [ital q]+] ions from He and Ar

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Physical Review A; (United States)

DOI:https://doi.org/10.1103/PhysRevA.48.382· OSTI ID:6520391

Yaltkaya, S; Kamber, E Y; Ferguson, S M ^[1]

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1. Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008-5151 (United States)

Doubly differential cross sections, in angle and energy, for state-selective single-electron capture from He and Ar by Ar[sup [ital q]+] ions have been studied experimentally at laboratory impact energies between 25[ital q] and 100[ital q] eV ([ital q]=4 and 5, where [ital q] is the ion charge state) and scattering angles between 0[degree] and 5[degree], by means of translational energy-gain spectroscopy. The translational energy-gain spectra show that only a few final states were selectively populated depending on the charge state of the projectile, ionization potential of the target, and weakly on the impact energy. A resonable description of the populated final states is described qualitatively in terms of the reaction windows, which are calculated using a multichannel Landau-Zener model. The general features of the differential cross sections are discussed in terms of a semiclassical curve-crossing model.

• OSTI ID: 6520391
• Journal Information: Physical Review A; (United States), Journal Name: Physical Review A; (United States) Vol. 48:1; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

664300* -- Atomic & Molecular Physics-- Collision Phenomena-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ARGON IONS
ATOM COLLISIONS
CAPTURE
CHARGED PARTICLES
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELECTRON CAPTURE
ELEMENTS
ENERGY RANGE
EV RANGE
EV RANGE 10-100
EV RANGE 100-1000
FLUIDS
GASES
HELIUM
ION COLLISIONS
ION-ATOM COLLISIONS
IONS
NONMETALS
RARE GASES