arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.12062nucl-thnucl-ex
收藏

原子核中手征宇称破坏电磁跃迁的选择定则

Selection rules of electromagnetic transitions for chirality-parity violation in atomic nuclei

Y. Y. Wang, X. H. Wu, S. Q. Zhang, P. W. Zhao, J. Meng

摘要:

利用反射非对称的三轴粒子转子模型研究了核手征宇称破缺现象。发现了理想ChP破坏系统的一种新的对称性,并导出了相应的电磁跃迁选择定则。给出了包括近简并四重带在内的ChP破坏的指纹和电磁跃迁的选择规则。通过取具有$A=$ 130个核的典型能量间距的双- $j$壳$h_{11/2}$和$d_{5/2}$,检查ChP四重带的这些指纹。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑