Nuclear magnetization distribution and hyperfine splitting in Bi82+ ion Original Research Article

Hyperfine splitting in Bi82+ and Pb81+ ions was calculated using continuum RPA approach with effective residual forces. To fix the parameters of the theory nuclear magnetic dipole moments of two one-particle and two one-hole nuclei around 208Pb were calculated in the same approach. The contribution from velocity dependent two-body spin–orbit residual interaction was explicitly taken into account. In addition to electronic HFS the octupole moment of 209Bi and the HFS in muonic bismuth atom were also obtained in the same approach. All the calculated observables, except the electronic HFS in 209Bi, are in good agreement with the data. We argue for more accurate measurements of the octupole moment and the muonic HFS for 209Bi nucleus.