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Energies, Fine Structures, and Hyperfine Structures of the States for the Beryllium AtomDOI: 10.1155/2012/569876 Abstract: Energies and wave functions of the states for the beryllium atom are calculated with the full-core plus correlation wave functions. Fine structures and hyperfine structures are calculated with the first-order perturbation theory. For the state, the calculated energies, fine structure, and hyperfine structure parameters are in good agreement with the latest theoretical and experimental data in the literature; it is shown that atomic parameters of the low-lying excited states for the beryllium atom can be calculated accurately using this theoretical method. For the () states, the present calculations may provide valuable reference data for future theoretical calculations and experimental measurements.
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