Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-06-12
Phys.Rev.C77:061305,2008
Physics
Nuclear Physics
Nuclear Theory
6 pages, 3 figures, accepted for publication in Phys. Rev. C
Scientific paper
10.1103/PhysRevC.77.061305
The triaxial-octupole Y$_{32}$ correlation in atomic nuclei has long been expected to exist but experimental evidence has not been clear. We find, in order to explain the very low-lying 2$^-$ bands in the transfermium mass region, that this exotic effect may manifest itself in superheavy elements. Favorable conditions for producing triaxial-octupole correlations are shown to be present in the deformed single-particle spectrum, which is further supported by quantitative Reflection Asymmetric Shell Model calculations. It is predicted that the strong nonaxial-octupole effect may persist up to the element 108. Our result thus represents the first concrete example of spontaneous breaking of both axial and reflection symmetries in the heaviest nuclear systems.
Chen Yen-Sen
Gao Zao-Chun
Sun Yang
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