Chiral bands for quasi-proton and quasi-neutron coupling with a triaxial rotor

Abstract

A particle rotor model (PRM) with a quasi-proton and a quasi-neutron coupled with a triaxial rotor is developed and applied to study chiral doublet bands with configurations of a $h_{11/2}$ proton and a $h_{11/2}$ quasi-neutron. With pairing treated by the BCS approximation, the present quasi-particle PRM is aimed at simulating one proton and many neutron holes coupled with a triaxial rotor. After a detailed analysis of the angular momentum orientations, energy separation between the partner bands, and behavior of electromagnetic transitions, for the first time we find aplanar rotation or equivalently chiral geometry beyond the usual one proton and one neutron hole coupled with a triaxial rotor.

25 pages, 10 figures, accepted for publication in Physical Review C

References in corpus (3)

• Candidate chiral doublet bands in the odd-odd nucleus ${}^{126}$Cs
• Doublet bands in ${}^{126}$Cs in the triaxial rotor model coupled with two quasiparticles
• Examining the chiral geometry in 104Rh and 106Rh

Cited by in corpus (29)

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• Multiple Chirality in Nuclear Rotation: A Microscopic View
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• Candidate MKiD nucleus 106Rh in triaxial relativistic mean-field approach with time-odd fields
• Multiple chiral doublet bands with octupole correlations in reflection-asymmetric triaxial particle rotor model
• Multiple chiral doublet candidate nucleus ${}^{105}$Rh in a relativistic mean-field approach
• Two-dimensional collective Hamiltonian for chiral and wobbling modes
• Chirality in odd-$A$ Rh isotopes within triaxial particle rotor model
• Chiral geometry of higher excited bands in triaxial nuclei with particle-hole configuration
• Dynamics of rotation in chiral nuclei
• Behavior of the collective rotor in nuclear chiral motion
• Selection rules of electromagnetic transitions for chirality-parity violation in atomic nuclei
• Pseudospin symmetry and octupole correlations for multiple chiral doublets in 131Ba
• Static quadrupole moments of nuclear chiral doublet bands
• Recent progress in multiple chiral doublet bands
• Multi-chiral facets in symmetry restored states: Five chiral doublets candidates in even-even nucleus ${}^{136}$Nd
• Possible chiral doublets in ${}^{60}$Ni
• Nuclear chiral rotation induced by superfluidity
• Coexistence of planar and aplanar rotations in ${}^{195}$Tl
• Covariant density functional theory for nuclear chirality in ${}^{135}$Nd
• Signature splitting in ${}^{173}$W with triaxial particle rotor model
• High-Spin Doublet Band Structures in odd-odd ${}^{194-200}$Tl isotopes
• Chiral dynamics in soft triaxial nuclei
• Electromagnetic transitions in multiple chiral doublet bands
• Pseudo spin doublet bands and Gallagher Moszkowski doublet bands in ${}^{100}$Y
• The coexistence of possible magnetic and chiral rotation in ${}^{129}\mathrm{Cs}$ and ${}^{131}\mathrm{La}$: a microscopic investigation
• Negative-parity high-spin structure of 105Pd
• The role of scalar and mass interactions in a relativistic model of the charmonium spectrum