The competition between alpha decay and spontaneous fission in odd-even and odd-odd nuclei in the range 99 \leg Z \leg 129
K. P. Santhosh, B. Priyanka
TL;DR
This study predicts decay modes and half-lives of heavy and superheavy nuclei with Z=99-129 using the Coulomb and proximity potential model, identifying long-lived isotopes and potential candidates for laboratory synthesis.
Contribution
The paper provides new theoretical predictions of decay modes and half-lives for a wide range of heavy nuclei, aiding experimental efforts in synthesizing and studying these isotopes.
Findings
Alpha decay half-lives agree with other models and experimental data.
Identifies isotopes likely to survive fission and decay via alpha emission.
Suggests potential laboratory synthesis of long-lived superheavy nuclei.
Abstract
The predictions on the mode of decay of the odd-even and odd-odd isotopes of heavy and superheavy nuclei with Z = 99-129, in the range 228 \leg A \leg 336, have been done within the Coulomb and proximity potential model for deformed nuclei (CPPMDN). A comparison of our calculated alpha half lives with the values computed using other theoretical models shows good agreement with each other. An extensive study on the spontaneous fission half lives of all the isotopes under study has been performed to identify the long-lived isotopes in the mass region. The study reveals that the alpha decay half lives and the mode of decay of the isotopes with Z = 109, 111, 113, 115 and 117, evaluated using our formalisms, agrees well with the experimental observations. As our study on the odd-even and odd-odd isotopes of Z = 99-129 predicts that, the isotopes 99, 101,…
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