Internal conversion of the low energy ${}^{229m}$Th isomer in the Thorium anion

E. V. Tkalya, R. Si

A process of the decay of the anomalously low lying nuclear isomer ${}^{229m}$Th$(3/2^{+},8.28\pm 0.17$ eV) in the Thorium anion (Th${}^{-}$) via the internal conversion (IC) channel is s…