Double-Auger decay, Feshbach and shape resonances in negative ions

Inner-shell photoionization of negative ions is very different from photoionization of neutral or positive ions. The short-range interaction that governs negative ions leads to new and different physics. Negative ions exist because of electron correlation that is so strong that it leads to strong si...

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Bibliographic Details
Published in:Radiation physics and chemistry (Oxford, England : 1993) England : 1993), 2006-11, Vol.75 (11), p.1447-1450
Main Authors: Berrah, N., Bilodeau, R.C., Bozek, J.D., Walter, C.W., Gibson, N.D., Ackerman, G.D.
Format: Article
Language:English
Subjects:
Feshbach resonance
Inner-shell
Negative ions
Post-collision interaction
Triply excited resonances
Wigner law
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Summary:Inner-shell photoionization of negative ions is very different from photoionization of neutral or positive ions. The short-range interaction that governs negative ions leads to new and different physics. Negative ions exist because of electron correlation that is so strong that it leads to strong simultaneous double-Auger decay, as well as shape and Feshbach resonances. Our recent work has also shown that inner-shell photoionization obeys the Wigner law even when post-collision interaction affects the cross-section.
ISSN:0969-806X
1879-0895
DOI:10.1016/j.radphyschem.2005.07.067