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Chemi-ionization in K-I collisions. I. Integral cross sections

Andresen, B. and Kuppermann, A. and de Vries, A. E. (1978) Chemi-ionization in K-I collisions. I. Integral cross sections. Zeitschrift für Physik A: Atoms and Nuclei, 289 (1). pp. 1-9. ISSN 0340-2193. doi:10.1007/bf01408488.

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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 as E⁻¹.

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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. E(04-3)-767] from the United States Energy Research and Development Administration. Report Code: CALT-767P4-139. Contribution No. 5415
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Energy Research and Development Administration (ERDA)E(04-3)-767
Subject Keywords: Charge Transfer; Elementary Particle; Relative Energy; Threshold Energy; Equation Method
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Caltech Division of Chemistry and Chemical Engineering5415
Issue or Number:1
Record Number:CaltechAUTHORS:20201014-153714950
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Official Citation:Andresen, B., Kuppermann, A. & de Vries, A.E. Chemi-ionization in K-I collisions. Z Physik A 289, 1–9 (1978).
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106083
Deposited By: George Porter
Deposited On:14 Oct 2020 23:15
Last Modified:16 Nov 2021 18:50

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