Influence of theΔresonance on ground-state properties of nuclei

Brueckner-Hartree-Fock calculations on ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ are presented using a one-boson-exchange potential, which includes the $\Delta \mathrm{}\left(1236\right)\mathrm{}$ resonance in all partial waves. The repulsive effect from the explicit treatment of the $\Delta$ is considerably weaker than for the nuclear matter system. This density dependence of the repulsion leads to $\mathrm{NN}$ interactions, which may describe the energies of finite nuclei as well as of nuclear matter.