FISSION-LIKE ESTIMATE FOR THE EMISSION OF HEAVY CLUSTERS

The exotic radioactive decay mode, in which a heavy cluster is emitted, is considered as a fission-like process. The potential barrier associated with an axially symmetric shape distortion is calculated in terms of the interplay between the surface and the coulomb energies. The experimental branch ratios of ¹⁴ C and ²⁴Ne emissions to α-decays have been reproduced within about one power of ten, and some new kinds of radioactivities may be expected.