1998/10/26 by Mamoru Matsuo, M. Matsuo, S. Takami +1 · 1 citation
Engineering · Physics and Astronomy · #Nuclear Physics and Applications #Nuclear physics research studies #Particle accelerators and beam dynamics #nucl-th
paper · pdf · doi:10.1063/1.59520
10 pages
arxiv created 1998/10/26 · openalex publication_date 1999/01/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/29
By performing a fully three dimensional Hartree-Fock calculation with use of the Skyrm forces, we demonstrate possibility of exotic deformations violating both the reflection and the axial symmetries of N = Z nuclei in A ∼ 60 − 80 mass region. The Y32 tetrahedral shape predicted in excited 80 Zr arises from a shell gap at N, Z = 40 which is enhanced for the tetrahedron deformation. Softness toward the Y33 triangular deformation of the oblate state in 68 Se is also predicted. Octupole deformations that violate the reflection symmetry have attracted many attentions recently in studies of nuclear structure[1]. Although axial octupole deformation is well established in actinides and in neutron rich Xe and Ba region, there seems no experimental evidence of more exotic shapes that violate both the reflection and the axial symmetries, except for light alpha-clustering nuclei such as 12 C [2].