Excitation of the ${}^{229}$Th nucleus by the hole in the inner electronic shells

M. G. Kozlov, A. V. Oleynichenko, D. Budker +6

The ${}^{229}$Th nucleus has a long-lived isomeric state $A^{\ast }$ at 8.338(24) eV [Kraemer et al, Nature, \textbf{617}, 706 (2023)]. This state is connected to the ground state by an M1…