Isotope shift of the 2s 2S1/2 $\rightarrow$ 2p 2P1/2,3/2 transitions of Li-like Ca ions

doi:10.1088/1674-1056/abc7a2

Abstract The mass-and field-shift parameters of the two 2s ²S_1/2 $\rightarrow$ 2p ²P_1/2,3/2 transitions in the Li-like Ca ions are calculated by using multi-configuration Dirac-Hartree-Fock (MCDHF) and the relativistic configuration interaction (RCI) methods with the inclusion of the transverse photon (Breit) interaction, vacuum polarization and self-energy corrections. In addition, the mass shift and field shift of these two transitions are calculated, where the field shift is calculated by using the evaluated value $\delta\langle r^2\rangle$ obtained by [Atomic Data and Nuclear Data Tables 9969 (2013)]. It is found that the mass shift of Li-like Ca ions is greater than the field shift.

Keywords: isotope shift multi-configuration Dirac-Hartree-Fock (MCDHF) mass shift field shift

Received: 29 September 2020
Revised: 30 October 2020
Accepted manuscript online: 05 November 2020

PACS:	31.15.V-	(Electron correlation calculations for atoms, ions and molecules)
	31.15.am	(Relativistic configuration interaction (CI) and many-body perturbation calculations)
	31.30.J-	(Relativistic and quantum electrodynamic (QED) effects in atoms, molecules, and ions)
	31.30.Gs	(Hyperfine interactions and isotope effects)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11864036) and the Funds for Creative Research Groups of Gansu Province, China (Grant No. 20JR5RA541).

Corresponding Authors: ^†Corresponding author. E-mail: zhangdh@nwnu.edu.cn

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Denghong Zhang(张登红), Fangjun Zhang(张芳军), Xiaobin Ding(丁晓彬), and Chenzhong Dong(董晨钟) Isotope shift of the 2s ²S_1/2 $\rightarrow$ 2p ²P_1/2,3/2 transitions of Li-like Ca ions 2021 Chin. Phys. B 30 043102

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Isotope shift of the 2s 2S1/2 $\rightarrow$ 2p 2P1/2,3/2 transitions of Li-like Ca ions

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Isotope shift of the 2s ²S_1/2 $\rightarrow$ 2p ²P_1/2,3/2 transitions of Li-like Ca ions