Volume 124, Number 5, December 2018
|Number of page(s)||3|
|Published online||10 December 2018|
Alpha decay and cluster radioactivity of super heavy nuclei 303,304120
Horia Hulubei National Institute of Physics and Nuclear Engineering (IFIN-HH) - P.O. Box MG-6, RO-077125 Bucharest-Magurele, Romania and Frankfurt Institute for Advanced Studies, Johann Wolfgang Goethe University - Ruth-Moufang-Str. 1, D-60438 Frankfurt am Main, Germany
Received: 22 October 2018
Accepted: 23 November 2018
The heaviest nuclei produced until now are few isotopes of the oganesson (atomic number Z = 118). We performed calculations of α-decay half-lives using the models AKRA (Akrawy, 2017), ASAF (Analytical Super-Asymmetric Fission, 1980), UNIV (Universal Formula, 2006), and semFIS (Semi-empirical formula based on Fission Theory, 1983). Cluster radioactivity half-lives are calculated with ASAF and UNIV models. The most important result of our calculations shows that 92,94Sr cluster radioactivity of 303,304120 has a branching ratio relative to α-decay of −0.10 and 0.49, respectively. We hope that future measurements will prove that cluster decay may compete with α decay.
PACS: 23.60.+e – α decay / 23.70.+j – Heavy-particle decay / 21.10.Tg – Lifetimes, widths
© EPLA, 2018
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