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Ab initio multiconfigurational calculations of experimentally significant energy levels and transition rates in Lr i ()
Phys. Rev. A 112, 062802 – Published 1 December, 2025
DOI: https://doi.org/10.1103/9p1l-xx4b
Abstract
Large-scale multiconfigurational calculations are conducted on experimentally significant transitions in Lr I and its lanthanide homologue Lu I, exhibiting good agreement with recent theoretical and experimental results. A single reference calculation is performed, allowing for substitutions from the core within a sufficiently large active set to effectively capture the influence of the core on the valence shells, improving upon previous multiconfigurational calculations. An additional calculation utilizing a multireference set is performed to account for static correlation effects which contribute to the wave function. Reported energies for the two selected transitions are and for and , respectively.
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