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Kinematic Isotope Effects in Low Energy Electron Capture

Journal Article · · Physical Review Letters
;  [1]
  1. W. M. Keck Laboratory for Computational Physics, Department of Physics, University of Nevada, Las Vegas, Las Vegas, Nevada 89154-4002 (United States)
The replacement of hydrogen with its isotope deuterium, in collisions with multiply charged ions, is shown to lead to a suppression of total charge transfer cross sections at collision energies much higher than previously thought. We demonstrate, using a fully quantal calculation of electron capture in collisions of N{sup 4+}(2{ital s}) with H(1{ital s}) and D(1{ital s}), that this isotope effect is significant for capture into the N{sup 3+}(3{ital d}) states at collision energies approaching 10 eV/amu. Estimates of the magnitude of the effect, using the semiclassical Landau-Zener-Stueckelberg model, are made for several multiply charged systems.
OSTI ID:
116006
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 75; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English

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