Proton particle-neutron hole states in132Sbwith a realistic interaction

The structure of the particle-hole nucleus ${}^{132}\mathrm{Sb}$ provides a direct source of information on the effective neutron-proton interaction in the ${}^{132}\mathrm{Sn}$ region. We have performed a shell-model calculation for this nucleus using a realistic effective interaction derived from the Bonn A nucleon-nucleon potential. The results are in very good agreement with the experimental data evidencing the reliability of our effective interaction matrix elements both with isospin $T=1\mathrm{}$ and $T=0.\mathrm{}$