https://doi.org/10.1140/epja/s10050-023-01210-5
Regular Article - Theoretical Physics
Cluster properties of heavy nuclei predicted with the Barcelona-Catania-Paris-Madrid energy density functional
1
Departamento de Física Teórica and CIAFF, Universidad Autónoma de Madrid, c. Francisco Tomás y Valiente 7, 28049, Cantoblanco, Madrid, Spain
2
Department of Physics, Faculty of Engineering and Physical Sciences, University of Surrey, GU2 7XH, Guildford, UK
3
Center for Computational Simulation, Universidad Politécnica de Madrid, Campus Montegancedo, 28660, Boadilla del Monte, Madrid, Spain
Received:
30
August
2023
Accepted:
30
November
2023
Published online:
21
December
2023
We study the cluster emission properties of 
Ra and 
Pu employing the Barcelona-Catania-Paris-Madrid (BCPM) energy density functional (EDF). Starting from two-dimensional potential energy surfaces, coexisting fission paths are identified. A fission valley located at large octupole deformations, corresponding to a highly-asymmetric mass distribution, is found in both nuclei. As the corresponding fragments are dominated by the presence of 
Pb, we can relate this fission path to the emergence of cluster emission. Using the octupole moment as collective degree of freedom, we compute the cluster decay half-lives and study the impact of collective inertias, pairing strength and collective zero-point energy. The agreement with experimental data resembles the results obtained for spontaneous fission half-lives, indicating the capability of BCPM to consistently describe a large variety of fission phenomena, including cluster emission.
© The Author(s) 2023
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