期刊
PHYSICS LETTERS B
卷 834, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.physletb.2022.137443
关键词
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资金
- National Natural Science Foundation of China [11875158, 12175097]
- US National Science Foundation [PHY-1913728]
The anomalous low-energy E2-related behavior of a triaxially deformed nucleus is examined using the interacting boson model. The results reveal striking features that can be traced back to a finite-N effect, providing a deeper understanding of the physical features of a soft triaxially deformed nucleus.
The anomalous low-energy E2-related behavior of a triaxially deformed nuclei is examined within the framework of the interacting boson model. The results show striking features that include a B(E2; 4(1)(+) -> 2(1)(+))/B(E2; 2(1)(+) -> 0(1)(+)) < 1.0 transition rate and a E(4(1)(+))/E(2(1)(+)) > 2.0 excitation energy ratio that can be tracked back to a finite-Neffect, which in a large-Nlimit of the theory yields normal results for a stable gamma-deformation. This description is shown to explain experimentally observed results in Pt-172 and Os-168, and in doing so yields a deeper understanding of the physical features of a soft triaxially-deformed nucleus. (C) 2022 The Authors. Published by Elsevier B.V.
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