Interelectronic-interaction effects on the two-photon decay rates of heavy He-like ions

Details Interelectronic-interaction effects on the two-photon decay rates of heavy He-like ions Interelectronic-interaction effects on the two-photon decay rates of heavy He-like ions

2011-05-22

arxiv.org/abs/1105.4334v1

Phys. Rev. A83: 062508,2011

Physics

Atomic Physics

17 pages, 7 figures

Scientific paper

Based on a rigorous QED approach a theoretical analysis is performed for the two-photon transitions in heavy He-like ions. Special attention is paid to the interelectronic-interaction corrections to the decay rates that are taken into account within the two-time Green-function method. Detailed calculations are carried out for the two-photon transitions 2^1S_0 -> 1^1S_0 and 2^3S_1 -> 1^1S_0 in He-like ions within the range of nuclear numbers Z=28-92. The total decay rates together with the spectral distributions are given. The obtained results are compared with experimental values and previous calculations.

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