Predictions on the alpha decay chains of superheavy nuclei with Z =121 within the range 290 ≤ A ≤ 339
Abstract
A systematic study on the alpha decay half lives of various isotopes of superheavy element Z = 121 within the range 290 ≤ A ≤ 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, 312121, 3α chain from 310121 and 1α chain from 313, 314121. Clearly our study shows that the isotopes of superheavy element Z = 121 within the mass range 309 ≤ A ≤ 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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