Relativistic calculations of the energies of the low-lying 1sns, 1snp, 1snd states and the probabilities of the one-photon 1snl-> 1sn'l' transitions in heliumlike uranium
Dulaev N. K.1,2, Kaygorodov M. Y.1, Malyshev A. V.1, Tupitsyn I. I.1, Shabaev V. M.1,2
1St. Petersburg State University, St. Petersburg, Russia
2National Research Center “Kurchatov Institute”, Moscow, Russia
Email: st069071@student.spbu.ru

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For heliumlike uranium, the energies of the singly-excited 1sns, 1snp, and 1snd states with n≤ 4 and the probabilities of the one-photon 1s3d-> 1s2p, 1s3p-> 1s2s, 1s3p-> 1s2p and 1s4d-> 1s2p transitions are evaluated. The calculations are performed within the Breit approximation using the configuration-interaction method in the basis of the Dirac-Fock-Sturm orbitals. The QED corrections to the energy levels are calculated employing the model-QED-operator approach. The nuclear recoil, frequency-dependent Breit-interaction, nuclear polarization, and nuclear deformation corrections are taken into account as well. Keywords: DOI: 10.61011/EOS.2023.03.56178.4569-22
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