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Excited states of positronic atoms

Bromley, Michael W. J. and Mitroy, Jim (2007). Excited states of positronic atoms. Physical Review A (Atomic, Molecular and Optical Physics),75(4):42506-1-42506-10.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 11 times in Scopus Article | Citations

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IRMA ID 80791673xPUB61
Title Excited states of positronic atoms
Author Bromley, Michael W. J.
Mitroy, Jim
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Publication Date 2007
Volume Number 75
Issue Number 4
ISSN 1094-1622   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-34247366717
Start Page 42506-1
End Page 42506-10
Total Pages 10
Place of Publication College Park, United States
Publisher American Physical Society
Field of Research 0202 - Atomic, Molecular, Nuclear, Particle and Plasma Physics
0204 - Condensed Matter Physics
0205 - Optical Physics
HERDC Category C1 - Journal Article (DEST)
Abstract The existence and structure of positronic atoms with a total angular momentum of L=1 is studied with the configuration interaction method. Evidence is presented that there is a P-2(o) state of e(+)Ca and P-2,4(o) states of e(+)Be(P-3(o)) that are electronically stable with binding energies of 45 meV and 2.6 meV, respectively. These predictions rely on the use of an asymptotic series analysis to estimate the angular L ->infinity limit of the energy. Incorporating corrections that compensate for the finite range of the radial basis increased the binding energies of e(+)Ca and e(+)Be to 71 meV and 42 meV, respectively.
Keywords quantum-defect theory
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Additional Notes Copyright by the American Physical Society

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