Calculation of energy levels and transition amplitudes for barium and radium
نویسنده
چکیده
The radium atom is a promising system for studying parity and time invariance violating weak interactions. However, available experimental spectroscopic data for radium is insufficient for designing an optimal experimental setup. We calculate the energy levels and transition amplitudes for radium states of significant interest. Forty states corresponding to all possible configurations consisting of the 7s, 7p and 6d singleelectron states as well as the states of the 7s8s, 7s8p and 7s7d configurations have been calculated. The energies of ten of these states corresponding to the 6d, 7s8s, 7p, and 6d7p configurations are not known from experiment. Calculations for barium are used to control the accuracy. PACS numbers: 31.25.Eb,31.25.Jf,32.70.Cs Calculation of energy levels and transition amplitudes for barium and radium 2
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