Eur. Phys. J. A (2016) 52: 371
https://doi.org/10.1140/epja/i2016-16371-y

Regular Article - Theoretical Physics

Theoretical predictions on the decay properties of superheavy nuclei Z = 123 in the region

School of Pure and Applied Physics, Kannur University, Swami Anandatheertha Campus, 670327, Payyanur, Kerala, India

^* e-mail: drkpsanthosh@gmail.com

Received: 23 September 2016
Accepted: 1 December 2016
Published online: 28 December 2016

Abstract

Decay modes of isotopes of the superheavy element Z = 123 within the range have been studied by comparing the alpha decay half-lives with the spontaneous fission half-lives. Three different mass tables were used for the calculation of the alpha decay energy. A close study of alpha decay half-lives within the range has been performed using the Coulomb and proximity potential model for deformed nuclei (CPPMDN). The alpha half-lives calculated using CPPMDN are in harmony with the values obtained by the Viola-Seaborg systematic, the universal curve of Poenaru et al., and the analytical formula of Royer. Spontaneous fission half-lives are evaluated using the new shell-effect-dependent formula proposed by Santhosh et al., and the semi-empirical formula of Xu et al. Through our study it is seen that the isotopes ^300-303123 exhibit chains and the isotopes ^304-307123 exhibit chains with half-lives in a measurable range. Clearly the isotopes of Z = 123 within the range will decay through alpha emission followed by spontaneous fission and thus can be predicted as synthesized and detected in laboratory via alpha decay. Since the predictions on decay modes of isotopes of the superheavy element Z = 123 is done for the first time it is hoped that the study will open up new areas in experimental investigations.