  Auger-Meitner processes are electronic decay processes of energetically
low-lying vacancies. In these processes, the vacancy is filled by an electron
of an energetically higher lying orbital, while another electron is
simultaneously emitted to the continuum. In low-lying orbitals relativistic
effects can not even be neglected for light elements. At the same time lifetime
calculations are computationally expensive. In this context, we investigate
which effect spin-orbit coupling has on Auger-Meitner decay widths and aim for
a rule of thumb for the relative decay widths of initial states split by
spin-orbit coupling. We base this rule of thumb on Auger-Meitner decay widths
of Sr4$p^{-1}$ and Ra6$p^{-1}$ obtained by relativistic FanoADC-Stieltjes
calculations.
