Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2006-10-10
Int.J.Mod.Phys.E16:533-540,2007
Physics
Nuclear Physics
Nuclear Theory
8 pages, 4 figures, submitted to IJMPE
Scientific paper
10.1142/S021830130700596X
The possible existence of stable axial octupole and tetrahedral deformations is investigated in $^{80}$Zr and $^{98}$Zr. HFBCS calculations with parity projection have been performed for various parametrizations of the Skyrme energy functional. The correlation and excitation energies of negative parity states associated with shape fluctuations have been obtained using the generator coordinate method (GCM). The results indicate that in these nuclei both the axial octupole and tetrahedral deformations are of dynamic character and possess similar characteristics. Various Skyrme forces give consistent results as a function of these two octupole degrees of freedom both at the mean-field level as well as for configuration mixing calculations.
Heenen Paul-Henri
Magierski Piotr
Schunck Nicolas
Zberecki Krzysztof
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