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arXiv · 1609.05495

Predictions on the alpha decay chains of superheavy nuclei with Z =121 within the range 290 $\leq$ A $\leq$ 339

K. P. Santhosh·C. Nithya
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Abstract

A systematic study on the alpha decay half lives of various isotopes of superheavy element \textit{Z} = 121 within the range 290 $\leq$ A $\leq$ 339 is presented for the first time using Coulomb and proximity potential model for deformed nuclei (CPPMDN). The calculated $α$ decay half lives of the isotopes within our formalism match well with the values computed using Viola-Seaborg systematic, Universal curve of Poenaru et al., and the analytical formula of Royer. In our study by comparing the $α$ decay half lives with the spontaneous fission half lives, we have predicted $2α$ chain from $^{309, 311, 312}$121, $3α$ chain from $^{310}$121 and $1α$ chain from $^{313, 314}$121. Clearly our study shows that the isotopes of superheavy element \textit{Z} = 121 within the mass range 309 $\leq$ A $\leq$ 314 will survive fission and can be synthesized and detected in the laboratory via alpha decay. We hope that our predictions will provide a new guide to future experiments.

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K. P. Santhosh, C. Nithya. 2016-09-21. Predictions on the alpha decay chains of superheavy nuclei with Z =121 within the range 290 $\leq$ A $\leq$ 339. https://doi.org/10.1142/s0218301316500798

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