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arXiv · 2603.03519

Microscopic description of cluster radioactivity fission valleys along isotopic and isotonic chains

M. Warda·A. Zdeb·R. Rodríguez-Guzmán
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Abstract

Cluster radioactivity has been successfully described as a super-asymmetric fission mode within the microscopic self-consistent Gogny Hartree-Fock-Bogoliubov approximation [Phys. Rev. C 84, 044608 (2011)]. For nuclei preserving the neutron-to-proton $N/Z$ ratio of the doubly magic $^{208}$Pb, a cluster radioactivity fission valley has been identified. Such a valley can also be found both in actinides and super-heavy nuclei. In this paper, chains of isotopes and isotones are examined to determine the limits of existence of the cluster radioactivity fission mode. It is shown that the super-asymmetric valley can be found in a wide range of the nuclear chart. Nevertheless, the valley flattens more and more when diverging from the isospin asymmetry of $^{208}$Pb. For neutron-deficient nuclei with $N/Z <$ 1.41, it is found that the valley diminishes before reaching the scission point, and cluster radioactivity can not be observed.

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M. Warda, A. Zdeb, R. Rodríguez-Guzmán. 2026-03-03. Microscopic description of cluster radioactivity fission valleys along isotopic and isotonic chains. https://doi.org/10.1103/b7q7-925c

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