Electron affinity of oganesson

Abstract

The electron affinity (EA) of superheavy element Og is calculated by the use of the relativistic Fock-space coupled cluster (FSCC) and configuration interaction methods. The FSCC cluster operator expansion included single, double, and triple excitations treated in a non-perturbative manner. The Gaunt and retardation electron-electron interactions are taken into account. Both methods yield the results that are in agreement with each other. The quantum electrodynamics correction to EA is evaluated using the model Lamb-shift operator approach. The electron affinity of Og is obtained to be 0.076(4) eV.

11 pages, 5 tables, 3 figures

References in corpus (3)

• QED and relativistic corrections in superheavy elements
• Approaching meV level for transition energies in the radium monofluoride molecule RaF and radium cation Ra${}^{+}$ by including quantum-electrodynamics effects
• Theoretical calculation of atomic properties of superheavy elements Z=110-112 and their ions

Cited by in corpus (3)

• Model-QED operator for superheavy elements
• The role of QED effects in transition energies of heavy-atom alkaline earth monofluoride molecules: a theoretical study of Ba${}^{+}$, BaF, RaF and E120F
• Model-QED-operator approach to relativistic calculations of the nuclear recoil effect in many-electron atoms and ions