Atomic structure calculations of super heavy noble element oganesson (Z=118)

TL;DR

This paper presents atomic structure calculations for the superheavy noble element oganesson (Z=118), including its spectrum and E1 transitions, using advanced computational methods and comparisons with lighter analogs.

Contribution

It introduces a combined CI and perturbation theory approach to accurately calculate the spectrum of oganesson, a novel application for superheavy elements.

Findings

Calculated spectrum and E1 transitions of oganesson

Good agreement with experimental data for lighter analog radon

Validated computational approach for superheavy element analysis

Abstract

We calculate the spectrum and allowed E1 transitions of the superheavy element Og (Z=118). A combination of configuration interaction (CI) and perturbation theory (PT) is used (Dzuba \textit{et at.} Phys. Rev. A, \textbf{95}, 012503 (2017)). The spectrum of lighter analog Rn I is also calculated and compared to experiment with good agreement.