期刊
PHYSICAL REVIEW C
卷 96, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.96.024301
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资金
- U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-SC0013037]
- U.S. Department of Energy (DOE) [DE-SC0013037] Funding Source: U.S. Department of Energy (DOE)
A systematic search for axial octupole deformation in the actinides and superheavy nuclei with proton numbers Z = 88-126 and neutron numbers from the two-proton drip line up to N = 210 was performed in covariant density functional theory (DFT) using four state-of-the-art covariant energy density functionals representing different model classes. The nuclei in the Z similar to 96, N similar to 196 region of octupole deformation were investigated in detail and the systematic uncertainties in the description of their observables were quantified. A similar region of octupole deformation exists also in Skyrme DFT and microscopic+macroscopic approaches but it is centered at somewhat different particle numbers. Theoretical uncertainties in the predictions of the regions of octupole deformation increase on going to superheavy nuclei with Z similar to 120, N similar to 190. There are no octupole deformed nuclei for Z = 112-126 in covariant DFT calculations. This agrees with Skyrme DFT calculations, but disagrees with Gogny DFT and microscopic+ macroscopic calculations which predict an extended Z similar to 120, N similar to 190 region of octupole deformation.
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