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arXiv · nucl-th/9711012

Tetrahedral and Triangular Deformations of $Z=N$ Nuclei in Mass Region $A \sim 60-80$

S. Takami·K. Yabana·M. Matsuo
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Abstract

We study static non-axial octupole deformations in proton-rich $Z=N$ nuclei, $^{64}$Ge, $^{68}$Se, $^{72}$Kr, $^{76}$Sr, $^{80}$Zr and $^{84}$Mo, by using the Skyrme Hartree-Fock plus BCS calculation with no restrictions on the nuclear shape. The calculation predicts that the oblate ground state in $^{68}$Se is extremely soft for the $Y_{33}$ triangular deformation, and that in $^{80}$Zr the low-lying local minimum state coexisting with the prolate ground state has the $Y_{32}$ tetrahedral deformation.

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S. Takami, K. Yabana, M. Matsuo. 1997-11-07. Tetrahedral and Triangular Deformations of $Z=N$ Nuclei in Mass Region $A \sim 60-80$. https://doi.org/10.1016/s0370-2693(98)00545-0

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