Eur. Phys. J. Plus (2021) 136: 654
https://doi.org/10.1140/epjp/s13360-021-01656-w

Regular Article

Relativistic calculations of the energy levels and the transition parameters in ²²³Ra I

¹ Department of Physics, The Hashemite University, 13115, Zarqa, Jordan
² Department of Physics, The University of Jordan, 11942, Amman, Jordan

^a wsalah@hu.edu.jo

Received: 14 April 2021
Accepted: 8 June 2021
Published online: 14 June 2021

Abstract

In this work, the calculations of the energy levels and the transition parameters of many levels of radium-223 isotope are acquired. The calculations are realized by using the multiconfiguration Dirac–Hartree–Fock method combined with the relativistic configuration interaction method. The accuracy of the obtained results is confirmed through comparison with the few experimental data available in the literature database. As a result of this comparison, our results are in fair overall agreements with the experimental data. Also, this comparison showed that the energy of 51 levels and transition parameters of 183 transition arrays are reported here for the first time.