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26 April 2024 |
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Inner-shell photodetachment thresholds: unexpected long-range validity of the Wigner law | | R C Bilodeau
; J D Bozek
; N D Gibson
; C W Walter
; G D Ackerman
; I Dumitriu
; N Berrah
; | | Date: |
19 Aug 2005 | | Journal: | Phys Rev Lett, 95 (8), 083001 | | Abstract: | Threshold behavior in inner-shell photodetachment is studied for the first time, specifically with 2-, 3-, or 4-electron emission from He- and S-. The threshold shapes are surprisingly consistent with the Wigner threshold law in all cases, despite large PCI effects observed in He-. In S-, the s-wave law is observed to agree with the data over an unprecedented range, more than an order of magnitude greater than predictions, and allows for the observation of the d-wave component. The measurements also demonstrate a means for obtaining precise core-excitation energies of free atoms. | | Source: | PubMed, pmid16196854 | | Services: | Forum | Review | Favorites | |
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