https://doi.org/10.1140/epjp/s13360-022-03151-2
Regular Article
Novel accurate atomic data of strontium-87 isotope
1
Department of Physics, The University of Jordan, 11942, Amman, Jordan
2
Department of Physics, Faculty of Science, The Hashemite University, P. O. Box 330127, 13133, Zarqa, Jordan
Received:
6
February
2022
Accepted:
4
August
2022
Published online:
22
August
2022
Novel consistent set of theoretical atomic data for the levels issue from the ns (n = 6, 7, 8, 9), np (n = 5, 6, 7, 8, 9), nd (n = 4, 5, 6, 7, 8, 9) and nf (n = 4, 5, 6, 7, 8, 9), 5p2 and 4d2 Rydberg series of neutral strontium-87 isotope have been obtained. We calculated the energy of the levels belonging to these series. The transition rates and the oscillator strengths between the levels of these series are calculated for all transitions which are allowed by electric dipole transition selection rules in spin–orbit coupling scheme. These data are obtained by using large-scale Multiconfiguration Dirac–Hartree–Fock (MCDHF) method. The accuracy and the convergence of the obtained results were monitored by using large number of flexible radial wave functions combined with large number of configurations in the configuration-interaction expansion. The present results are found to be in very good agreement with the very few experimental as well as theoretical results available in the literature database. This comparison confirms with certainty that the energy of 9 levels and the transition parameters of 295 transition arrays are new and have never been reported before.
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