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(e, 2e) & Related Processes pp 33–74Cite as

Directions in (e,2e) and Related Processes

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Part of the book series: NATO ASI Series ((ASIC,volume 414))

Abstract

The first part of this talk is aimed at those not so familiar with the formalism of ionization. Here we try to clarify how important physical effects associated with the initial and final states may be incorporated either explicitly or implicitly within the theoretical framework. The discussion is accompanied by an example based on the second Born approximation which also serves to illustrate how the quantal description fits in with intuitive ideas about final state interactions. New developments in the treatment of the final state are considered next. These include the ansatz of Brauner, Briggs and Klar, higher order corrections to this ansatz, and recent successful calculations using effective charges and the distorted-wave Born approximation. The last part of the talk is devoted to the double excitation processes of double ionization, or (e, 3e) as it is called, and excitation-ionization. The present theoretical status in these areas is reviewed. Comparison of theory with experiment is emphasized throughout.

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Author information

Author notes

  1. X. Zhang

    Present address: Department of Modern Physics, The University of Science and Technology of China, Anhui, People’s Republic of China

Authors and Affiliations

  1. Department of Applied Mathematics and Theoretical Physics, The Queen’s University of Belfast, Belfast, BT7 1NN, UK

    H. R. J. Walters & X. Zhang

  2. Department of Applied Mathematics and Theoretical Physics, University of Cambridge, Silver Street, Cambridge, CBS 9EW, UK

    Colm T. Whelan

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  1. H. R. J. Walters
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  2. X. Zhang
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  3. Colm T. Whelan
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Editor information

Editors and Affiliations

  1. Department of Applied Mathematics & Theoretical Physics, University of Cambridge, Cambridge, UK

    Colm T. Whelan

  2. Department of Applied Mathematics & Theoretical Physics, Queen’s University, Belfast, UK

    H. R. J. Walters

  3. Laboratoire des Collisions Atomiques et Moléculaires, Université de Paris-Sud, Orsay, France

    A. Lahmam-Bennani

  4. Fachbereich Physik, Universität Kaiserslautern, Kaiserslautern, Germany

    H. Ehrhardt

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Walters, H.R.J., Zhang, X., Whelan, C.T. (1993). Directions in (e,2e) and Related Processes. In: Whelan, C.T., Walters, H.R.J., Lahmam-Bennani, A., Ehrhardt, H. (eds) (e, 2e) & Related Processes. NATO ASI Series, vol 414. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-2036-4_2

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  • DOI: https://doi.org/10.1007/978-94-011-2036-4_2

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