https://doi.org/10.1051/epjconf/202532902010
Quadrupole-octupole coupling and the onset of octupole collectivity
1 Department of Physics, Hokkaido University, Sapporo 060-0810, Japan
2 Nuclear Reaction Data Center, Hokkaido University, Sapporo 060-0810, Japan
* e-mail: nomura@sci.hokudai.ac.jp
Published online: 25 June 2025
Octupole deformation and collective excitations are studied within the interacting boson model. By using the results of the self-consistent mean-field calculations with a universal energy density functional, the Hamiltonian of the interacting s, d, and f boson system is completely determined. A global systematic study confirms that significant octupole effects are present in actinide, lanthanide, and rare-earth nuclei corresponding to particular nucleon numbers for which octupole correlations are empirically suggested to be enhanced.
© The Authors, published by EDP Sciences, 2025
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
