Abstract
Electron emission from atom-atom collisions is analyzed within the framework, of both quantal and classical dynamics. We examine the effect of explicit electron-electron (e-e) interactions on the ejected electron spectra in hard collisions involving simultaneous excitation and ionization in the collision of two structured atoms. A double scattering sequence represented by a second order Bom approximation has been shown to give a dominant contribution over the single scattering to projectile ionization. A classical simulation confirms the double scattering process is analogous to the Thomas two-step capture mechanism. We find good agreement between quantal and classical calculations, showing the convergence of the Bom series to second order and the possibility of a classical treatment for e-e interactions in non-perturbative regimes. We also find that the shape of the ejected electron spectrum is very different from the usually assumed Lorentzian distribution. © 1993 IOP Publishing Ltd.
Recommended Citation
J. Wang et al., "Quantal And Classical Correspondence Of Double Scattering," Journal of Physics B: Atomic, Molecular and Optical Physics, vol. 26, no. 18, pp. 613 - 618, IOP Publishing, Sep 1993.
The definitive version is available at https://doi.org/10.1088/0953-4075/26/18/007
Department(s)
Physics
International Standard Serial Number (ISSN)
1361-6455; 0953-4075
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2023 IOP Publishing, All rights reserved.
Publication Date
28 Sep 1993
