CEA, Bruyeres

Giant resonances in exotics spherical nuclei with the HF+RPA approach

Namely theoretical results about the giant resonances in doubly magic exotics nuclei in Ni and Sn isotopes will be presented. These results are obtained within the HF+RPA approach in spherical symetry. The Gogny force D1S is used as well in the mean field hamiltonian as in the residual interaction in RPA matrix. The results show a lowering of the monopole resonance energy compared to stable nuclei, in particular for the $^{78}$Ni. The isovector-dipole resonance for the two of tin isotopes ($^{100}$Sn and $^{132}$Sn) show a spliting in two major pics.