Study on particle and cluster decay of superheavy nuclei Z=130–144 using Cubic plus Proximity potential with improved transfer matrix method
Abstract
The one-proton emission, alpha decay and cluster decay using a Cubic Plus Proximity model with improved transfer-matrix method are executed for the first time for the study of decay properties of 368 isotopes of nuclei, far from the beta stability line and beyond the islands of stability Z=130–144 superheavy nuclei are studied within the range 290≤A≤380. The calculated decay half-lives are in good agreement with other theoretical approaches. The signature of neutron shell closure at N=172,184,198,228,238 and proton shell closure at Z=138 obtained from half-life curves for emission of different clusters pronounces the previous predictions. Investigation of competition between various decay modes brings out the dominant decay mode associated with an isotope; for a given Z with increasing A the dominant decay mode is seen to shift from proton decay to alpha decay and finally spontaneous fission. The decay modes and half-lives which are within the limit of experimental detection 10−6s≤T1/2≤1030s are presented.
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