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

Andresen, B. and Kuppermann, A. (1978) Chemi-ionization in K-I collisions. II. Differential cross sections. Zeitschrift für Physik A: Atoms and Nuclei, 289 (1). pp. 11-16. ISSN 0340-2193. doi:10.1007/bf01408489.

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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.

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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
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Energy Research and Development Administration (ERDA)AT(04-3)-767
Subject Keywords: Elementary Particle; Relative Energy; Differential Cross Section; Differential Cross
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Caltech Division of Chemistry and Chemical Engineering5416
Issue or Number:1
Record Number:CaltechAUTHORS:20201014-153714730
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Official Citation:Andresen, B., Kuppermann, A. Chemi-ionization in K-I collisions. Z Physik A 289, 11–16 (1978).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106081
Deposited By: George Porter
Deposited On:15 Oct 2020 22:49
Last Modified:16 Nov 2021 18:50

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