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Alpha decay and cluster radioactivity of super heavy nuclei 303,304 120

2018; Institute of Physics; Volume: 124; Issue: 5 Linguagem: Inglês

10.1209/0295-5075/124/52001

1286-4854

D. N. Poenaru, R. A. Gherghescu,

Atomic and Molecular Physics

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.