High-precision ab initio calculations of the spectrum of Lr+

Kahl, E., Berengut, J. C., Laatiaoui, M., Eliav, E. & Borschevsky, A., 9-Dec-2019, In : Physical Review A. 100, 6, 6 p., 062505.

Research output: Contribution to journalArticleAcademicpeer-review

Copy link to clipboard


  • High-precision ab initio calculations of the spectrum of Lr+

    Final publisher's version, 218 KB, PDF document

    Request copy


The planned measurement of optical resonances in singly ionized lawrencium (Z = 103) requires accurate theoretical predictions to narrow the search window. We present high-precision, ab initio calculations of the electronic spectra of Lr+ and its lighter homologue lutetium (Z = 71). We have employed the state-of-the-art relativistic Fock space coupled cluster approach as well as the configuration interaction with many-body perturbation theory (CI + MBPT) method to calculate atomic energy levels, g factors, and transition amplitudes and branching ratios. Our calculations are in close agreement with experimentally measured energy levels and transition strengths for the homologue Lu+, and are well converged for Lr+, where we expect a similar level of accuracy. These results present large-scale, systematic calculations of Lr+ and will serve to guide future experimental studies of this ion.

Original languageEnglish
Article number062505
Number of pages6
JournalPhysical Review A
Issue number6
Publication statusPublished - 9-Dec-2019



ID: 113062147