Potential turning points in cluster radioactivity
Abstract
Effects of various nuclear interaction potentials on the decay lifetimes and the turning points of the WKB action integral has been studied. The microscopic nuclear potential obtained by folding in the density distribution functions of the two clusters with a realistic effective interaction has also been used to calculate the turning points. Half lives of alpha and 20O cluster emissions from 228Th have been calculated within the superasymmetric fission model using various phenomenological and the microscopic double folding potentials. Calculations of half lives with the microscopic double folding potentials are found to be in good agreement with the observed experimental data. Present calculations put the superasymmetric fission model on a firm theoretical basis.
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