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

TL;DR

This study systematically predicts alpha decay chains of superheavy element Z=121 isotopes with mass numbers 290 to 339 using a Coulomb and proximity potential model, identifying specific isotopes likely to survive fission and be experimentally detectable.

Contribution

It introduces the first systematic calculation of alpha decay half lives for Z=121 isotopes within this mass range using the CPPMDN model, aligning well with existing systematic formulas.

Findings

Predicted alpha decay chains for specific isotopes of Z=121.

Identified isotopes likely to survive fission and be detectable.

Validated the model's predictions against established systematic formulas.

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 $\alpha$ 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 $\alpha$ decay half lives with the spontaneous fission half lives, we have predicted $2\alpha$ chain from $^{309, 311, 312}$121, $3\alpha$ chain from $^{310}$121 and $1\alpha$ 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.