High-K Precession modes: Axially symmetric limit of wobbling motion

Abstract

The rotational band built on the high-K multi-quasiparticle state can be interpreted as a multi-phonon band of the precession mode, which represents the precessional rotation about the axis perpendicular to the direction of the intrinsic angular momentum. By using the axially symmetric limit of the random-phase-approximation (RPA) formalism developed for the nuclear wobbling motion, we study the properties of the precession modes in ${}^{178}$W; the excitation energies, B(E2) and B(M1) values. We show that the excitations of such a specific type of rotation can be well described by the RPA formalism, which gives a new insight to understand the wobbling motion in the triaxial superdeformed nuclei from a microscopic view point.

arXiv comment14 pages, 8 figures (Spelling of the authors name was wrong at the first upload, so it is corrected)

References in corpus (8)

• Description of Multi Quasi Particle Bands by the Tilted Axis Cranking Model
• Wobbling Motion in Atomic Nuclei with Positive-Gamma Shapes
• Nuclear Wobbling Motion and Electromagnetic Transitions
• Nuclear moments of inertia and wobbling motions in triaxial superdeformed nuclei
• Gross shell structure at high spin in heavy nuclei
• Moments of inertia for multi-quasiparticle configurations
• Calculation of strongly-coupled rotational bands in terms of the tilted axis cranking model
• Magnetic Properties of Precession Modes Built on High-K Multi-quasiparticle States in ^{178}W

Cited by in corpus (14)

• Two-dimensional collective Hamiltonian for chiral and wobbling modes
• Collective Hamiltonian for wobbling modes
• Parametrizations of triaxial deformation and E2 transitions of the wobbling band
• High-spin torus isomers and their precession motions
• Wobbling motion in ${}^{135}$Pr within a collective Hamiltonian
• Two-dimensional collective Hamiltonian for chiral and wobbling modes II: Electromagnetic transitions
• 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
• Influence of moments of inertia on transverse wobbling mode in odd-mass nuclei
• Wobbling geometry in simple triaxial rotor
• Influence of triaxial deformation on wobbling motion in even-even nuclei
• Pure Collective Precession Motion of High-Spin Torus Isomer
• Single-phonon and multi-phonon excitations of the $\gamma$ vibration in rotating odd-$A$ nuclei
• Precession Mode on High-K Configurations: Non-Collective Axially-Symmetric Limit of Wobbling Motion