Toroidal resonance: Relation to pygmy mode, vortical properties, and anomalous deformation splitting

Journal Article · Tue Nov 15 00:00:00 EST 2016 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S106377881606020X· OSTI ID:22612595

Kvasil, J. ^[1]; Repko, A. ^[2]; Kleinig, W. ^[3]; Reinhard, P. -G. ^[4]

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1. CharlesUniversity, Institute of Particle and Nuclear Physics (Czech Republic)
2. Institute of Physics SAS, Department of Nuclear Physics (Slovakia)
3. Joint Institute for Nuclear Research, Laboratory of Theoretical Physics (Russian Federation)
4. Universität Erlangen, Institut für Theoretische Physik II (Germany)

We review a recent progress in investigation of the isoscalar toroidal dipole resonance (TDR). A possible relation of the TDR and low-energy dipole excitations (also called a pygmy resonance) is analyzed. It is shown that the dipole strength in the pygmy region can be understood as a local manifestation of the collective vortical toroidalmotion at the nuclear surface. Application of the TDR as a measure of the nuclear dipole vorticity is discussed. An anomalous splitting of the TDR in deformed nuclei is inspected.

• OSTI ID: 22612595
• Journal Information: Physics of Atomic Nuclei, Vol. 79, Issue 6; Other Information: Copyright (c) 2016 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
DEFORMED NUCLEI
DIPOLES
RESONANCE
TOROIDAL CONFIGURATION