Relativistic Energy of Highly Triply Excited 3l3lnl² P^o(m) (m = 1-5) States of Lithium

The high-lying triply excited 3l3lnl² P^o (n ≥ 3) states of the double hollow lithium atom are studied by using the saddle-point variational method. Relativistic corrections are evaluated with the first-order perturbation theory, and the mass polarization effect is also included. The dominant configuration mixtures of these triply excited states are given. The results are compared with other theoretical and experimental data in the literature.