Abstract

Within the one level R-matrix approach several hindrance factors for the radioactive decay of the255Fm nucleus in which are emitted alpha-nuclei are calculated. The interior wave functions are supposed to be given by the shell model with effective residual interactions. The exterior wave functions are calculated from a cluster-nucleus double-folding model potential obtained with the Michigan 3-Yukawa (M3Y) interaction. As example of the cluster decay fine structure we analyzed the case of alpha-decay of255Fm nucleus. Good agreement with the experimental data is obtained.

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