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Angular correlations in the two-photon decay of heliumlike heavy ions

The two-photon decay of heavy, helium-like ions is investigated based on second-order perturbation theory and Dirac’s relativistic equation. Special attention has been paid to the angular emission of the two photons (i.e., how the angular correlation function depends on the shell structure of the io...

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Bibliographic Details
Main Authors: Surzhykov, Andrey (Author) , Volotka, A. (Author) , Fratini, Filippo (Author) , Santos, J. P. (Author) , Indelicato, P. (Author) , Plunien, G. (Author) , Stöhlker, Thomas (Author) , Fritzsche, S. (Author)
Format: Article (Journal)
Language:English
Published: 15 April 2010
In: Physical review. A, Atomic, molecular, and optical physics
Year: 2010, Volume: 81, Issue: 4, Pages: 1-7
ISSN:1094-1622
DOI:10.1103/PhysRevA.81.042510
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevA.81.042510
Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevA.81.042510
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Author Notes:A. Surzhykov, A. Volotka, F. Fratini, J.P. Santos, P. Indelicato, G. Plunien, Th. Stöhlker, and S. Fritzsche
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Summary:The two-photon decay of heavy, helium-like ions is investigated based on second-order perturbation theory and Dirac’s relativistic equation. Special attention has been paid to the angular emission of the two photons (i.e., how the angular correlation function depends on the shell structure of the ions in their initial and final states). Moreover, the effects from the (electric and magnetic) nondipole terms in the expansion of the electron-photon interaction are discussed. Detailed calculations have been carried out for the two-photon decay of the 1s2s1S0, 1s2s3S1, and 1s2p3P0 states of helium-like Xe52+, Au77+, and U90+ ions.
Item Description:Gesehen am 06.09.2023
Physical Description:Online Resource
ISSN:1094-1622
DOI:10.1103/PhysRevA.81.042510

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