Bromine iso-electronic sequence: Lifetimes of the 4p44d D47/2 metastable level

The relativistic multiconfiguration Dirac–Fock method is applied to the calculation of the radiative decay rates from the lowest J=7/2J=7/2 level of the 4s24p4d configuration along the Bromine iso-electronic sequence. It is shown that only a limited number of configurations is needed to include the most relevant contributions to the variation in correlation effects between this excited level and the ground 4s24p5P23/2 state. The transition from LS to jj recoupling schemes along the sequence is studied and its impact on decay rates is discussed.