• Proton shell closure in the superheavy region: Cluster radioactivity study in the isotopic set $^{270-318}118$

• Fulltext

https://www.ias.ac.in/article/fulltext/pram/095/0114

• Keywords

Cluster decay; proton shell closure; centre of island of stability.

• Abstract

Cluster decay of the superheavy nuclei $^{270-318}118$ 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 α 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 $^{298}_{184}114$, which is doubly closed, is very stable and we could reach the inference that $^{298}_{184}114$ is the most probable nuclide to be the centre of island of stability.

• Author Affiliations

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

• Pramana – Journal of Physics

Volume 95, 2021
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Posted on July 25, 2019