Spectral properties of In II from MCDHF calculations

Abstract

We report extensive relativistic multiconfiguration Dirac-Hartree-Fock calculations of oscillator strengths and hyperfine structures for a large number of electric dipole transitions in In II. Results for the 5s 2 1 S 0 -5s5p 3 P o 0 hyperfine induced transition are also presented. Core polarization is accounted for by means of explicit CI. To describe spin-polarization effects configuration state functions obtained by single excitations from all core-shells are included in the expansions. The computed oscillator strength for the 5s 2 1 S 0 -5s5p 3 P o 1 intercombination transition is in good agreement with laser spectroscopy measurements of In + ions in a radio-frequency trap. The calculated magnetic dipole hyperfine interaction constants agree very well with experimental constants derived from Fourier transform spectra. The problem with offdiagonal interactions affecting the hyperfine structures in closely spaced finestructure levels is discussed.

Spectral properties of Sb IV from MCDHF calculations

“…To estimate the accuracy of the calculated isotope shift, we may look at the isotope shift for the 5s 2 1 S 0 -5s5p 3 P o 1 transition in In II. Calculations similar to the ones presented here predicted the 115,113 In isotope shift to be −0.515 GHz [30]. This should be compared with the most recent values of the shift that gives −0.695 76(0.168) GHz [34], i.e.…”

On the breakdown of the Dirac kinetic energy operator for estimating normal mass shifts

“…This approximated NMS operator has been widely used in the relativistic atomic structure calculations [12,[17][18][19].…”

Interference Effects in Hyperfine Induced 2s2p3P0,3P2→ 2s21S0Transitions of Be-like Ions

“…Hyperfine spectroscopy is very important tool in study of atomic and nuclear physics, especially which can be used to check fundamental interaction [1,2,3,4,5] such as electromagnetic and electroweak interaction with high accuracy, determine nuclear properties [6,7,8,9,10], develop atomic clock [11,12,13,14,15], and so on. Recently one kind of hyperfine transitions, which is known as hyperfine induced transition or hyperfine quenching, attracts more attention owing to analyzing spectra [16], determining isotopic ratios in stellar and diagnosing low-density plasma [17,18] besides those reasons mentioned above.…”