Abstract
Quantum electrodynamic (QED) electron self-energy and vacuum polarization corrections to the binding energy of the electron in the eka-radon negative ion are calculated. This ion was found recently to be stable in the Dirac-Coulomb-Breit Hamiltonian; an improved basis and correlating all 119 electrons give a binding energy of The QED contribution is 0.0059(5) eV, amounting to a 9% reduction of the binding energy. This is the largest relative QED effect reported for neutral or weakly ionized atoms, and confirms the importance of QED corrections for superheavy elements.
- Received 15 November 2002
DOI:https://doi.org/10.1103/PhysRevA.67.020102
©2003 American Physical Society