The lowest positive- and negative-parity bands of $^{20}$Ne and neutron-rich even-even Ne isotopes are investigated using a theoretical framework based on energy density functionals. Starting from a self-consistent relativistic Hartree-Bogoliubov calculation of axially-symmetric and reflection-asymmetric deformation energy surfaces, the collective symmetry-conserving states are built using projection techniques and the generator coordinate method. Overall a good agreement with the experimental excitation energies and transition rates is obtained. In particular, the model provides an accurate description of the excitation spectra and transition probabilities in $^{20}$Ne. The contribution of cluster configurations to the low-energy states is discussed, as well as the transitional character of the ground state. The analysis is extended to $^{22}$Ne and the shape-coexisting isotope $^{24}$Ne, and to the drip-line nuclei $^{32}$Ne and $^{34}$Ne. The role of valence neutrons in the formation of molecular-type bonds between clusters is discussed.
Long-lived opposite-parity states and the onset of octupole collectivity in atomic nuclei
San Diego State University（圣地亚哥州立大学）；Ho Chi Minh City University of Education（胡志明市教育大学）；Institute for Basic Science（基础科学研究院）；Tel Aviv University（特拉维夫大学）
Imprints of octupole collectivity in uranium-238 on relativistic heavy-ion flow observables
Key Laboratory of Nuclear Physics and Ion-beam Application (MOE), and Institute of Modern Physics, Fudan University（复旦大学现代物理研究所）；Shanghai Research Center for Theoretical Nuclear Physics, NSFC and Fudan University（复旦大学理论物理研究中心）；Department of Chemistry, Stony Brook University（石溪大学化学系）；Physics Department, Brookhaven National Laboratory（布鲁克海文国家实验室物理部）；Department of Physics and Astronomy, Wayne State University（韦恩州立大学物理与天文学系）；RIKEN BNL Research Center, Brookhaven National Laboratory（布鲁克海文国家实验室理研BNL研究中心）；Physics Department and Center for Particle Physics and Field Theory, Fudan University（复旦大学物理系及粒子物理与场论中心）
Continuum quasiparticle random-phase approximation for $(n,γ)$ reactions on neutron-rich nuclei: collectivity and resonances in low-energy cross section
