NUCLEAR-STRUCTURE EFFECTS IN CLUSTER RADIOACTIVITY

Hindered or favoured transitions have been experimentally detected in cluster radioactivity of odd-mass nuclei, in a similar way to what has been previously observed in spontaneous fission or in the fine struct ure of alpha-decay. By combining the experimental study with a suitabl e theoretical description one can develop a powerful method to get dir ect spectroscopic informations on the deformed states of emitting nucl ei. We are analyzing the possibility to explain within a superasymmetr ic fission model why the C-14 transition from Ra-223 toward the first excited state of (209)pb is stronger than that toward its ground state .