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

doi:10.1016/j.scib.2020.08.028

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

Nuclear Theory 2021-08-06 v1 Nuclear Experiment

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

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Abstract

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.

Keywords

chirality-parity violation electromagnetic transitions selection rules triaxial particle rotor model nuclear symmetry

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@article{arxiv.2006.12062,
  title  = {Selection rules of electromagnetic transitions for chirality-parity violation in atomic nuclei},
  author = {Y. Y. Wang and X. H. Wu and S. Q. Zhang and P. W. Zhao and J. Meng},
  journal= {arXiv preprint arXiv:2006.12062},
  year   = {2021}
}

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12 pages, 4 figures

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

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