Two quasiparticle wobbling in the even-even nucleus 130Ba

Abstract

Two newly observed bands built on a two-quasiparticle configuration in 130Ba have been investigated for the first time with the microscopic projected shell model. The experimental energy spectra and the available electromagnetic transition probabilities are well reproduced. The wobbling character of the higher band is revealed by the angular momentum projected wavefunctions via the K plot and the azimuthal plot. This provides the first strong microscopic evidence for wobbling motion based on a two-quasiparticle configuration in even-even nuclei.

arXiv comment12 pages, 4 figures

References in corpus (23)

• New parametrization for the nuclear covariant energy density functional with point-coupling interaction
• Antimagnetic Rotation Band in Nuclei: A Microscopic Description
• Novel structure for magnetic rotation bands in 60Ni
• Transverse wobbling-a collective mode in odd-A triaxial nuclei
• Rod-shaped Nuclei at Extreme Spin and Isospin
• Transverse Wobbling in ${}^{135}$Pr
• Symmetry restoration in Hartree-Fock-Bogoliubov based theories
• Experimental Evidence for Transverse Wobbling in ${}^{105}$Pd
• Wobbling Motion in Atomic Nuclei with Positive-Gamma Shapes
• Chiral geometry in symmetry restored states: Chiral doublet bands in 128Cs
• Transverse wobbling in an even-even nucleus
• Collective Hamiltonian for wobbling modes
• Anomalous Crossing Frequency in Odd Proton Nuclei
• Diversity of shapes and rotations in the gamma-soft 130Ba nucleus: first observation of a t-band in the A=130 mass region
• Tilted-axis wobbling in odd-mass nuclei
• Matrix elements of one-body and two-body operators between arbitrary HFB multi-quasiparticle states
• Configuration interaction in symmetry-conserving covariant density functional theory
• Semiclassical unified description of wobbling motion in even-even and even-odd nuclei
• Rotational motion of triaxially deformed nuclei studied by microscopic angular-momentum-projection method I: Nuclear wobbling motion
• Wobbling motion in the multi-bands crossing region
• Quantal rotation and its coupling to intrinsic motion in nuclei
• A new approach for the wobbling motion in the even-odd isotopes ${}^{161,163,165,167}$Lu
• Gamow-Teller response in the configuration space of DFT-rooted no-core configuration-interaction model

Cited by in corpus (5)

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• Nuclear matrix elements of neutrinoless double-$\beta$ decay in the triaxial projected shell model
• $g$-factor and static quadrupole moment of ${}^{135}$Pr, ${}^{105}$Pd, and ${}^{187}$Au in wobbling motion
• Influence of moments of inertia on transverse wobbling mode in odd-mass nuclei
• Influence of triaxial deformation on wobbling motion in even-even nuclei