NEW ISLAND OF CLUSTER EMITTERS

A new region of proton-rich parent nuclei decaying by spontaneous clus ter emission with a measurable branching ratio relative to alpha decay is predicted within the analytical superasymmetric fission model. Aft er a brief presentation of the model and of the seven mass tables used to calculate the released energy, the obtained results are discussed. Measurable half-lives and branching ratios are estimated for C-12, O- 16, Si-28, and other cluster radioactivities of some nuclides having p roton and neutron numbers in the range Z=56-64 and N=58-72. Such nucle i far from stability could be produced in reactions induced by radioac tive beams.