IReS, Strasbourg

Shell Structure changes in neutron rich nuclei

Through, in beam gamma spectroscopy performed since 4 years at GANIl using fragmentation reactions of stable and radioactive beams, information on the nuclear structure of neutron rich nuclei around N=20, 28 and 40. These results show weakenin of some of these magic numbers and the appearance of new magic numbers. These results will be briefly presented and the reason of the observed shell structure changes will be discussed