Rearrangement of valence neutrons by proton excitation in odd-odd Sb nuclei

The distribution of valence neutrons of odd-odd ${}_{}{}^{120,122,124}{}_{}{}^{}\mathrm{Sb}$ nuclei was investigated in the framework of the interacting boson-fermion-fermion model. It was found that the occupation probability of the ν${\mathit{h}}_{11/2}$ orbit increased by 0.084±0.037 when exciting the odd proton from the ${\mathit{d}}_{5/2}$ to the ${\mathit{g}}_{7/2}$ state. The change was interpreted as a result of the proton-neutron interaction. © 1996 The American Physical Society.