QED calculations of the $n=2$ to $n=1$ x-ray transition energies in middle-$Z$ heliumlike ions

Abstract

Ab initio QED calculations of the four x-ray transitions from the $L$ to $K$ shell in heliumlike argon, titanium, iron, copper, and krypton are performed. The binding energies for all the $n=1$ and $n=2$ states are evaluated as well. The calculation approach combines the rigorous QED treatment in the first two orders of the perturbation theory constructed within the extended Furry picture with the third- and higher-order correlation effects evaluated in the Breit approximation. The obtained results are compared with the previous evaluations and available experimental data.

7 pages, 2 figures, 4 tables

References in corpus (12)

• Nuclear deformation effect on the binding energies in heavy ions
• Relativistic recoil, electron-correlation, and QED effects on the 2p_j-2s transition energies in Li-like ions
• Non-perturbative calculation of the two-loop Lamb shift in Li-like ions
• QED calculation of the 2p3/2-2p1/2 transition energy in five-electron ion of argon
• QED treatment of electron correlation in Li-like ions
• Many-electron QED corrections to the g factor of lithiumlike ions
• Screened QED corrections to the g factor of Li-like ions
• High-precision measurements of $n=2\to n=1$ transition energies and level widths in He- and Be-like Argon Ions
• Two-loop self-energy in the Lamb shift of the ground and excited states of hydrogen-like ions
• Ground-state ionization energies of boronlike ions
• New x-ray measurements in Helium-like Atoms increase discrepancy between experiment and theoretical QED
• Nuclear recoil effect on the binding energies in highly charged He-like ions

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• QED calculations of energy levels of helium-like ions with $5\le Z\le 30$
• Complex scaled relativistic configuration-interaction study of the $LL$ resonances in helium-like ions: from Boron to Argon
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• Ab initio calculations of the $2p_{3/2}\to 2s$ transition in He-, Li-, and Be-like uranium
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