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

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Cited by in corpus (44)

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• Open Problems in Understanding the Nuclear Chirality
• Evidence for Multiple Chiral Doublet Bands in ${}^{133}$Ce
• Multiple Chirality in Nuclear Rotation: A Microscopic View
• The first candidate for chiral nuclei in the $A\sim 80$ mass region: ${}^{80}$Br
• Chiral geometry in symmetry restored states: Chiral doublet bands in 128Cs
• Collective Hamiltonian for chiral modes
• Candidate MKiD nucleus 106Rh in triaxial relativistic mean-field approach with time-odd fields
• Multiple chiral doublets in four-$j$ shells particle rotor model: five possible chiral doublets in ${}_{60}^{136}$Nd${}_{76}$
• Multiple chiral doublet candidate nucleus ${}^{105}$Rh in a relativistic mean-field approach
• Multiple chiral doublet bands with octupole correlations in reflection-asymmetric triaxial particle rotor model
• Two-dimensional collective Hamiltonian for chiral and wobbling modes
• Microscopic nuclear structure models and methods : Chiral symmetry, Wobbling motion and $\gamma -$bands
• Chirality in odd-$A$ Rh isotopes within triaxial particle rotor model
• Possible Presence and Properties of Multi Chiral Pair-Bands in Odd-Odd Nuclei with the Same Intrinsic Configuration
• Chiral geometry of higher excited bands in triaxial nuclei with particle-hole configuration
• Investigation of doublet-bands in ${}^{124,126,130,132}$Cs odd-odd nuclei using triaxial projected shell model approach
• Reexamine the nuclear chiral geometry from the orientation of the angular momentum
• Chiral geometry and rotational structure for ${}^{130}$Cs in the projected shell model
• Dynamics of rotation in chiral nuclei
• Semiclassical description of chiral geometry in triaxial 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
• Recent progress in multiple chiral doublet bands
• Explore nuclear multiple chirality in $A\sim 60$ mass region within covariant density functional theory
• Static quadrupole moments of nuclear chiral doublet bands
• Multi-chiral facets in symmetry restored states: Five chiral doublets candidates in even-even nucleus ${}^{136}$Nd
• Two-dimensional collective Hamiltonian for chiral and wobbling modes II: Electromagnetic transitions
• Possible chiral doublets in ${}^{60}$Ni
• Nuclear chiral rotation induced by superfluidity
• Coexistence of chiral symmetry and pseudospin symmetry in one nucleus: triplet bands in ${}^{105}$Ag
• Coexistence of planar and aplanar rotations in ${}^{195}$Tl
• Three-level mixing model for nuclear chiral rotation: Role of planar component
• Chiral geometry in multiple chiral doublet bands
• Covariant density functional theory for nuclear chirality in ${}^{135}$Nd
• Signature splitting in ${}^{173}$W with triaxial particle rotor model
• Chiral dynamics in soft triaxial nuclei
• High-Spin Doublet Band Structures in odd-odd ${}^{194-200}$Tl isotopes
• 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