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AbstractAbstract
[en] Absolute charge-transfer cross sections for the production of 10 excited levels of the lithium atom produced in the Li+ + H2 → Li* + H2 reaction have been determined as a function of the lithium ion energy over the 0.2--3.0-keV energy range. These cross sections are observed to follow the functional form sigma (v, ΔE) = K exp(-ΔEa/hv), where v is the ion velocity and ΔE (n, l) is the ''energy defect'' for the charge transfer into the n, l excited level of lithium. This functional dependence can be rationalized in terms of a semiclassical coupled-harmonic-oscillator model. We find that at constant v the relative magnitudes of the capture cross section are governed by the energy defect and the angular momentum quantum number of the final state. Specifically, we observe that sigma/sub CT/(nd) > sigma/sub CT/(np) > sigma/sub CT/(ns), where sigma/sub CT/ is the charge-transfer cross section
Original Title
charge-transfer cross sections, semiclassical coupled-harmonic oscillator model
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Record Type
Journal Article
Journal
Physical Review. A; v. 14(3); p. 965-970
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