Nuclear electromagnetic moments of the ground states of 148 Pm and 210 Bi calculated with phenomenological wave functions derived from analyses of β-decay experiments

Abstract

The magnetic dipole and electric quadrupole moments of the ground states of 148 Pm and 210 Bi are evaluated with phenomenological wave functions derived from β-decay studies published in previous works. It is found that these wave functions account satisfactorily for the experimental data of both nuclear moments of the210Bi ground state. In the case of 148 Pm, while the calculated value of the electric quadrupole moment is not inconsistent with the experimental data, a strong disagreement between theory and experiment is found for the magnetic dipole moment. We attribute this failure to the use of a too small configuration space for the expansion of the nuclear wave function of 148 Pm.