On Alpha-decay and Alpha Clustering

Författare: Gordana Dodig Crnkovic; Göteborgs Universitet (gu); []

Nyckelord: ;

Sammanfattning: The half-life for the Alpha-decay of 212 Po is calculated within a harmonic oscillator representation. Clustering induced by the nuclear interaction appear by considering alarge configuration space. The role of clusterisation in the alpha-decay process isclearly demonstrated. It was shown that as soon as four-particle cluster is formedon the surface of the nucleus a broad region appears in which the ratio betweentheoretical half-lives and experimental ones is independent on the channel radius.That is the important result itself which indicates that the old problem of strongdependence of alpha-decay widths on arbitrary parameter of channel radius canbe solved by describing the alpha-decay as the disintegration of the initial statein which alpha clustering occurs. The role of proton-neutron interaction proved to be decisive in the formation of the stable four-particle cluster.

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