Abstract
Nonrelativistic energies and wave functions of the 1s22s2p 3Po states of Be isoelectronic sequence (Z = 11–18) are calculated using the full core plus correlation method (FCPC). To obtain the accurate energy level, the relativistic corrections and mass polarization effect are included by using the first-order perturbation theory. The calculated excitation energies (relative to the 1s22s2 ground state) are compared with the experiment. Most of the calculated [Formula: see text] energies agree with the experiment to within a few inverse centimetres. The calculated hyperfine coupling constants are in good agreement with the latest theoretical data in the literature. Our results may provide valuable reference data for spectral analysis and identification in the future.
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