Toroidal resonance: relation to pygmy mode, vortical properties and anomalous deformation splitting
Nuclear Theory
2017-06-05 v1
Abstract
We review a recent progress in investigation of the isoscalar toroidal dipole resonance (TDR). A possible relation of the TDR and low-energy dipole strength (also called a pygmy resonance) is analyzed. It is shown that the dipole strength in the pygmy region can by understood as a local manifestation of the collective vortical toroidal motion at the nuclear surface. Application of the TDR as a measure of the nuclear dipole vorticity is discussed. Finally, an anomalous splitting of the TDR in deformed nuclei is scrutinized.
Keywords
Cite
@article{arxiv.1602.03326,
title = {Toroidal resonance: relation to pygmy mode, vortical properties and anomalous deformation splitting},
author = {V. O. Nesterenko and J. Kvasil and A. Repko and W. Kleinig and P. -G. Reinhard},
journal= {arXiv preprint arXiv:1602.03326},
year = {2017}
}
Comments
8 pages, 5 figures, submitted to "Physics of Atomic Nuclei"