期刊
PHYSICAL REVIEW C
卷 89, 期 4, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevC.89.044304
关键词
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资金
- National Natural Science Foundation of China [11205120, 11235001, 11320101004]
- National Key Basic Research Program of China [2013CB834400]
- UK STFC
- Science and Technology Facilities Council [ST/J000051/1] Funding Source: researchfish
- STFC [ST/J000051/1] Funding Source: UKRI
Configuration-constrained potential-energy-surface calculations are performed including beta 6 deformation to investigate high-K isomeric states in nuclei around No-254 and (270)Ds, the heaviest nuclei where there have been some observations of two-quasiparticle isomers, while data for four-quasiparticle isomers are scarce. We predict the prevalent occurrence of four-quasiparticle isomeric states in these nuclei, together with their favored configurations. The most notable examples, among others, are K-Pi = 20(+) states in (266,268)Ds and (268,270)Cn having very high K value, relatively low excitation energy, and well-deformed axially symmetric shape. The predicted isomeric states, with hindered spontaneous fission and a decay, could play a significant role in the future study of superheavy nuclei.
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