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

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.

12 pages, 4 figures

References in corpus (12)

• From chiral vibration to static chirality in ^{135}Nd
• Chiral bands for quasi-proton and quasi-neutron coupling with a triaxial rotor
• Evidence for Multiple Chiral Doublet Bands in ${}^{133}$Ce
• Multiple chiral doublet bands of identical configuration in 103Rh
• Multiple Chirality in Nuclear Rotation: A Microscopic View
• Doublet bands in ${}^{126}$Cs in the triaxial rotor model coupled with two quasiparticles
• Chiral geometry in symmetry restored states: Chiral doublet bands in 128Cs
• Specific features and symmetries for magnetic and chiral bands in nuclei
• Multiple chiral doublet bands with octupole correlations in reflection-asymmetric triaxial particle rotor model
• Two-dimensional collective Hamiltonian for chiral and wobbling modes
• Chirality of ${}^{135}$Nd reexamined: Evidence for multiple chiral doublet bands
• Pseudospin symmetry and octupole correlations for multiple chiral doublets in 131Ba

Cited by in corpus (3)

• The evolution of the chiral symmetry in cesium isotopes
• Coexisting single-particle excitations and octupole correlations in transitional nucleus ${}^{217}\mathbf{Ra}$
• Harmonic chiral vibration in triaxial nuclei