Theoretical study of the hyperfine-interaction constants and the isotope-shift factors for the 3s21S0–3s3p3,1P1o transitions in Al+

Theoretical study of the hyperfine-interaction constants and the isotope-shift factors for the... We calculated the magnetic dipole and the electric quadrupole hyperfine interaction constants of 3s3p3,1P1o states and the isotope shift, including mass and field shift, factors for transitions from these two states to the ground state 3s21S0 in Al+ ions using the multiconfiguration Dirac-Hartree-Fock method. The effects of the electron correlations and the Breit interaction on these physical quantities were investigated in detail based on the active space approach. It is found that the core-core and the higher order correlations are considerable for evaluating the uncertainties of the atomic parameters concerned. The uncertainties of the hyperfine interaction constants in this work are less than 1.6%. Although the isotope shift factors are highly sensitive to the electron correlations, reasonable uncertainties were obtained by exploring the effects of the electron correlations. Moreover, we found that the relativistic nuclear recoil corrections to the mass shift factors are very small and insensitive to the electron correlations for Al+. These atomic parameters present in this work are valuable for extracting the nuclear electric quadrupole moments and the mean-square charge radii of Al isotopes. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Physical Review A American Physical Society (APS)

Theoretical study of the hyperfine-interaction constants and the isotope-shift factors for the 3s21S0–3s3p3,1P1o transitions in Al+

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Theoretical study of the hyperfine-interaction constants and the isotope-shift factors for the 3s21S0–3s3p3,1P1o transitions in Al+

Abstract

We calculated the magnetic dipole and the electric quadrupole hyperfine interaction constants of 3s3p3,1P1o states and the isotope shift, including mass and field shift, factors for transitions from these two states to the ground state 3s21S0 in Al+ ions using the multiconfiguration Dirac-Hartree-Fock method. The effects of the electron correlations and the Breit interaction on these physical quantities were investigated in detail based on the active space approach. It is found that the core-core and the higher order correlations are considerable for evaluating the uncertainties of the atomic parameters concerned. The uncertainties of the hyperfine interaction constants in this work are less than 1.6%. Although the isotope shift factors are highly sensitive to the electron correlations, reasonable uncertainties were obtained by exploring the effects of the electron correlations. Moreover, we found that the relativistic nuclear recoil corrections to the mass shift factors are very small and insensitive to the electron correlations for Al+. These atomic parameters present in this work are valuable for extracting the nuclear electric quadrupole moments and the mean-square charge radii of Al isotopes.
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Publisher
The American Physical Society
Copyright
Copyright © ©2017 American Physical Society
ISSN
1050-2947
eISSN
1094-1622
D.O.I.
10.1103/PhysRevA.96.012514
Publisher site
See Article on Publisher Site

Abstract

We calculated the magnetic dipole and the electric quadrupole hyperfine interaction constants of 3s3p3,1P1o states and the isotope shift, including mass and field shift, factors for transitions from these two states to the ground state 3s21S0 in Al+ ions using the multiconfiguration Dirac-Hartree-Fock method. The effects of the electron correlations and the Breit interaction on these physical quantities were investigated in detail based on the active space approach. It is found that the core-core and the higher order correlations are considerable for evaluating the uncertainties of the atomic parameters concerned. The uncertainties of the hyperfine interaction constants in this work are less than 1.6%. Although the isotope shift factors are highly sensitive to the electron correlations, reasonable uncertainties were obtained by exploring the effects of the electron correlations. Moreover, we found that the relativistic nuclear recoil corrections to the mass shift factors are very small and insensitive to the electron correlations for Al+. These atomic parameters present in this work are valuable for extracting the nuclear electric quadrupole moments and the mean-square charge radii of Al isotopes.

Journal

Physical Review AAmerican Physical Society (APS)

Published: Jul 21, 2017

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