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

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

1997-11-07

arxiv.org/abs/nucl-th/9711012v1

Phys.Lett. B431 (1998) 242-248

Physics

Nuclear Physics

Nuclear Theory

8 pages, 4 Postscript figures, REVTEX

Scientific paper

10.1016/S0370-2693(98)00545-0

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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