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Proton shell closure in the superheavy region: Cluster radioactivity study in the isotopic set \(^{270\text {--}318}\)118

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Abstract

Cluster decay of the superheavy nuclei \(^{270\text {--}318}118\) has been studied taking Coulomb and proximity potentials as interacting barriers. This study is based on the concept of cold valley. Cluster decay half-lives and other characteristics are computed for various clusters. The predicted \(\alpha \) decay half-life values are compared with other theoretical models and also with the sole experimental value. Plots connecting half-lives with the neutron number of the daughter nuclei as well as with the neutron number of the parent nuclei, strongly indicated neutron shell closure at \(N=184\). Also, we noted that proton shell closure occurs at \(Z=114\). From our studies, we noted that the nuclide \({}_{184}^{298} {114}\), which is doubly closed, is very stable and we could reach the inference that \({}_{184}^{298} {114}\) is the most probable nuclide to be the centre of island of stability.

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  1. School of Pure and Applied Physics, Kannur University, Swami Anandatheertha Campus, Payyanur , 670 327, India

    K Pradeep Kumar & K P Santhosh

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  1. K Pradeep Kumar
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  2. K P Santhosh
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Correspondence to K P Santhosh.

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Kumar, K.P., Santhosh, K.P. Proton shell closure in the superheavy region: Cluster radioactivity study in the isotopic set \(^{270\text {--}318}\)118. Pramana - J Phys 95, 114 (2021). https://doi.org/10.1007/s12043-021-02138-5

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