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Application of the Schwinger variational principle to electron-ion scattering in the static-exchange approximation

Lucchese, Robert R. and McKoy, Vincent (1980) Application of the Schwinger variational principle to electron-ion scattering in the static-exchange approximation. Physical Review A, 21 (1). pp. 112-123. ISSN 0556-2791. http://resolver.caltech.edu/CaltechAUTHORS:LUCpra80a

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Abstract

The authors present a method for applying the Schwinger variational principle to the scattering of low-energy electrons by molecular ions. Numerical procedures for its application in the static-exchange approximation are specifically discussed. As examples, the s- and p-wave phase shifts for e-He+ are obtained. The procedure also provides the electron continuum wave functions which can be used to obtain photoionization cross sections. The resulting cross sections for photoionization of the ground and metastable states of the He are seen to be accurate.


Item Type:Article
Additional Information:©1980 The American Physical Society Received 9 March 1979 This research was supported by Grant No. CHE76-05157 from the National Science Foundation and by an Institutional Grant from the U.S. Department of Energy, No. EY-76-G-03-1305. We also acknowledge support by the National Resource for Computation in Chemistry under a grant from the National Science Foundation and the U.S. Department of Energy (Contract No. W-7405-ENG-48). One of us (R.R.L.) acknowledges partial support from the National Science Foundation. We also thank Dr. A.W. Fliflet and Dr. D.K. Watson for many helpful and stimulating discussions. Arthur Amos Noyes Laboratory of Chemical Physics, Contribution No. 5981.
Record Number:CaltechAUTHORS:LUCpra80a
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:LUCpra80a
Alternative URL:http://dx.doi.org/10.1103/PhysRevA.21.112
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6734
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:20 Dec 2006
Last Modified:26 Dec 2012 09:24

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