Релятивистские расчеты энергий низко возбужденных состояний 1sns, 1snp, 1snd и вероятностей однофотонных переходов 1snl -> 1sn'l' в гелиеподобном ионе урана

Abstract

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.