期刊
SCIENCE BULLETIN
卷 65, 期 23, 页码 2001-2006出版社
ELSEVIER
DOI: 10.1016/j.scib.2020.08.028
关键词
Chiture; Chiplex; Spontaneously symmetry breaking; Selection rules of electromagnetic transitions
资金
- National Natural Science Foundation of China [11875075, 11935003, 11975031, 11621131001]
- National Key R&D Program of China [2018YFA0404400, 2017YFE0116700]
- State Key Laboratory of Nuclear Physics and Technology, Peking University [NPT2020ZZ01]
- China Postdoctoral Science Foundation [2020M670014]
The nuclear Chirality-Parity (ChP) violation, a simultaneous breaking of chiral and reflection symmetries in the intrinsic frame, is investigated with a reflection-asymmetric triaxial particle rotor model. A new symmetry for an ideal ChP violation system is found and the corresponding selection rules of the electromagnetic transitions are derived. The fingerprints for the ChP violation including the nearly degenerate quartet bands and the selection rules of the electromagnetic transitions are provided. These fingerprints are examined for ChP quartet bands by taking a two-j shell h(11/2) and d(5/2) with typical energy spacing for A = 130 nuclei. (C) 2020 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
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