Chemi-ionization in K-I collisions |
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Authors: | B. Andresen A. Kuppermann |
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Affiliation: | 1. Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California, USA 3. F.O.M. Institute of Atomic and Molecular Physics, Amsterdam, The Netherlands
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Abstract: | Accurate partial and integral cross sections for chemi-ionization have been calculated for a two-state model representing collisions between ground state K and I atoms from threshold to 6 eV relative energy using a coupled equations method. In addition, these quantities have been calculated in the Landau-Zener and Stueckelberg approximations. They furnish results for the charge transfer channel which agree with the accurate ones, down to the threshold energy, to within 7%. The integral cross sections for charge neutralization are obtained from the ionization cross sections by microscopic reversibility, and it diverges asE ?1. |
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