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Published March 1978 | public
Journal Article

Chemi-ionization in K-I collisions. II. Differential cross sections

Abstract

Accurate differential cross sections for chemi-ionization have been calculated for a twostate model representing collisions between ground state K and I atoms from threshold to 6eV relative energy using a coupled-equations method. In addition, they were also calculated using the Stueckelberg and an extended Landau-Zener approximation. The two former methods agree very well both with respect to amplitude and phase of the oscillations in the cross section, whereas the extended Landau-Zener approximation is too crude to reproduce a differential cross section. The elastic atom-atom cross section indicates that the curve crossing is mainly diabatic.

Additional Information

© 1978 Springer. Received 05 May 1978. Revised 14 August 1978. This work was supported in part by a Contract (No. AT(04-3)-767) from the United States Energy Research and Development Administration. Report Code: CALT-767P4-140. Contribution No. 5416

Additional details

Created:
August 22, 2023
Modified:
October 20, 2023