Journal article
Double shake-off model for the triple photoionization of beryllium
Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.36(13), pp.L211-L217
2003
Abstract
We propose a model for the triple photoionization of Be in which a core 1s electron absorbs the photon γ + 1s22s2Be → epsilon 1p + 1s2s2Be+ and the valence 2s2 electrons are shaken off into continuum due to the sudden change of the core potential. We decompose the double shake-off amplitude into a single shake-off 2s2 → nsepsilons and a subsequent electron impact ionization of the doubly charged Be2+ ion epsilons + 1sns Be2+ → epsilon 2l + epsilon3l + 1s Be3+. The latter process is described by the T-matrix of inelastic electron scattering on the 'semi-hollow' 1sns Be2+ ion in the monopole singlet channel. The convergent close-coupling method is used to evaluate the T-matrix.
Details
- Title
- Double shake-off model for the triple photoionization of beryllium
- Authors/Creators
- A.S. Kheifets (Author/Creator) - Australian National UniversityI. Bray (Author/Creator) - Murdoch University
- Publication Details
- Journal of Physics B: Atomic, Molecular and Optical Physics, Vol.36(13), pp.L211-L217
- Publisher
- Institute of Physics
- Identifiers
- 991005542669107891
- Copyright
- © 2003 IOP Publishing
- Murdoch Affiliation
- School of Mathematical and Physical Sciences
- Language
- English
- Resource Type
- Journal article
- Additional Information
- Letter to the editor
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- Citation topics
- 2 Chemistry
- 2.15 Physical Chemistry
- 2.15.664 Dissociative Electron Attachment
- Web Of Science research areas
- Optics
- Physics, Atomic, Molecular & Chemical
- ESI research areas
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