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

Abstract

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.

17 pages, 7 figures

References in corpus (8)

• Nuclear deformation effect on the binding energies in heavy ions
• Ground-state hyperfine structure of H-, Li-, and B-like ions in middle-Z region
• Screened QED corrections to the g factor of Li-like ions
• Interelectronic-interaction effect on the transition probability in high-Z He-like ions
• Radiative corrections to the magnetic-dipole transition amplitude in B-like ions
• Angular correlations in the two--photon decay of helium--like heavy ions
• QED calculation of transition probabilities in two-electron ions
• Nuclear recoil effect on the magnetic-dipole decay rates of atomic levels

Cited by in corpus (8)

• Many-electron effects on the x-ray Rayleigh scattering by highly charged He-like ions
• Theoretical analysis of the electron bridge process in ${}^{229}$Th${}^{3+}$
• Relativistic calculations of the non-resonant two-photon ionization of neutral atoms
• Angle-resolved x-ray spectroscopic scheme to determine overlapping hyperfine splittings in highly charged helium-like ions
• Photoelectron distribution of non-resonant two-photon ionization of neutral atoms
• Angular and polarization analysis for two-photon decay of 2s hyperfine states of hydrogenlike Uranium
• Nuclear excitation by two-photon electron transition
• Relativistic effects in the non-resonant two-photon K-shell ionization of neutral atoms