Abstract
We perform relativistic configuration-interaction calculations of the energy levels of the low-lying and core-excited states of berylliumlike iron, . The results include the QED contributions calculated by two different methods, the model QED operator approach and the screening-potential approach. The uncertainties of theoretical energies are estimated systematically. The predicted wavelengths of the transitions in berylliumlike iron improve previous theoretical results and compare favorably with the experimental data.
- Received 18 July 2014
DOI:https://doi.org/10.1103/PhysRevA.90.022509
©2014 American Physical Society