|
This article is cited in 3 scientific papers (total in 3 papers)
Spectroscopy and physics of atoms and molecules
Isotope shifts of energy levels in helium-like highly charged ions
N. A. Zubova, M. Yu. Kaygorodov, Yu. S. Kozhedub, A. V. Malyshev, R. V. Popov, I. M. Savelyev, I. I. Tupitsyn, V. M. Shabaev Saint Petersburg State University
Abstract:
Isotope shifts of $n$ = 1 and $n$ = 2 levels and corresponding transitions in helium-like highly charged ions are calculated with high precision. The total value of the isotope shift is determined mainly by the sum of the field and mass shifts. The field shift is calculated by using the Dirac–Fock–Sturm method taking into account interaction of configurations. Quantum-electrodynamic corrections to this contribution are taken into account approximately by using the corresponding one-electron expressions. The mass shift is calculated both within the framework of the Breit approximation and by taking into account quantum-electrodynamic contributions that become substantial for heavy ions. In the case of thorium and uranium ions, corrections due to nuclear polarization and deformation are taken into account additionally.
Keywords:
isotopic shifts, relativistic theory of atoms, charge radii of nuclei.
Received: 18.03.2020 Revised: 18.03.2020 Accepted: 25.03.2020
Citation:
N. A. Zubova, M. Yu. Kaygorodov, Yu. S. Kozhedub, A. V. Malyshev, R. V. Popov, I. M. Savelyev, I. I. Tupitsyn, V. M. Shabaev, “Isotope shifts of energy levels in helium-like highly charged ions”, Optics and Spectroscopy, 128:8 (2020), 1085–1093; Optics and Spectroscopy, 128:8 (2020), 1090–1099
Linking options:
https://www.mathnet.ru/eng/os325 https://www.mathnet.ru/eng/os/v128/i8/p1085
|
Statistics & downloads: |
Abstract page: | 30 | Full-text PDF : | 3 |
|