Atomic Parameters for the $2p^{5}3p{}^2[3/2{]}_2-2p^{5}3s{}^2[3/2{]}_2^o$ Transition of Ne I relevant in nuclear physics

Abstract

We calculated the magnetic dipole hyperfine interaction constants and the electric field gradients of $2p^{5}3p{}^2[3/2{]}_2$ and $2p^{5}3s{}^2[3/2{]}_2^o$ levels of Ne I by using the multiconfiguration Dirac-Hartree-Fock method. The electronic factors contributing to the isotope shifts were also estimated for the $\lambda =614.5$ nm transition connecting these two states. Electron correlation and relativistic effects including the Breit interaction were investigated in details. Combining with recent measurements, we extracted the nuclear quadrupole moment values for ${}^{20}$Ne and ${}^{23}$Ne with a smaller uncertainty than the current available data. Isotope shifts in the $2p^{5}3p{}^2[3/2{]}_2-2p^{5}3s{}^2[3/2{]}_2^o$ transition based on the present calculated field- and mass-shift parameters are in good agreement with the experimental values. However, the field shifts in this transition are two or three orders of magnitude smaller than the mass shifts, making rather difficult to deduce changes in nuclear charge mean square radii. According to our theoretical predictions, we suggest to use instead transitions connecting levels arising from the $2p^{5}3s$ configuration to the ground state, for which the normal mass shift and specific mass shift contributions counteract each other, producing relatively small mass shifts that are only one order of magnitude larger than relatively large field shifts, especially for the $2p^{5}3s{}^2[1/2{]}_1^o-2p^6{}^1{S}_0$ transition.

References in corpus (3)

• Relativistic calculations of isotope shifts in highly charged ions
• Tensorial form and matrix elements of the relativistic nuclear recoil operator
• Mass- and field-shift isotope parameters for the $2s-2p$ resonance doublet of lithium-like ions

Cited by in corpus (6)

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• Reevaluation of the nuclear electric quadrupole moment for 87Sr by hyperfine structures and relativistic atomic theory
• Role of hyperfine interaction in Landé $g$-factors of ${}^3{P}_0^o$ clock states
• Theoretical study on the hyperfine interaction constants and the isotope shift factors for the $3s^2{}^1{S}_0-3s3p{}^{3,1}{P}_1^o$ transitions in Al${}^{+}$