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

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

2004-12-20

arxiv.org/abs/nucl-th/0412074v2

Phys.Rev. C72 (2005) 014306

Physics

Nuclear Physics

Nuclear Theory

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

Scientific paper

10.1103/PhysRevC.72.014306

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.

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