Calculations for fission and cluster decay of ${}^{76}\mathrm{Sr}$ are presented for this nucleus to be in its ground state or formed as an excited compound system in heavy-ion reactions. The predicted mass distribution, for the dynamical collective mass transfer process assumed for fission of ${}^{76}\mathrm{Sr},$ is clearly asymmetric, favoring α nuclei. Cluster decay is studied within a preformed cluster model, both for ground-state to ground-state decays and from excited compound system to the ground state(s) or excited states(s) of the fragments.

• Received 8 April 1997

DOI:https://doi.org/10.1103/PhysRevC.56.3242