New Insight into the Pygmy Dipole Resonance in Stable Nuclei

Journal Article · Tue Nov 11 00:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3039814· OSTI ID:21254790

Neumann-Cosel, P von ^[1]

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1. Institut fuer Kernphysik, Technische Universitaet Darmstadt, 64289 Darmstadt (Germany)

Two examples of recent work on the structure of low-energy electric dipole modes are presented. The first part discusses the systematics of the pygmy dipole resonance (PDR) in stable tin isotopes deduced from high-resolution ({gamma},{gamma}') experiments. These help to distinguish between microscopic QRPA calculations based on either a relativistic or a nonrelativistic mean-field description, predicting significantly different properties of the PDR. The second part presents attempts to unravel the structure of dipoles modes at energies below the giant dipole resonance (GDR) in {sup 208}Pb with a high-resolution measurement of the (p-vector,p-vector') reaction under 0 deg.

• OSTI ID: 21254790
• Journal Information: AIP Conference Proceedings, Vol. 1072, Issue 1; Conference: International conference on nuclear physics and astrophysics: From stable beams to exotic nuclei, Cappadocia (Turkey), 25-30 Jun 2008; Other Information: DOI: 10.1063/1.3039814; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ELECTRIC DIPOLES
ELECTROMAGNETIC FIELDS
GAMMA DETECTION
LEAD 208
MAGNETIC RESONANCE
MEAN-FIELD THEORY
PHOTON-PHOTON INTERACTIONS
POLARIZED BEAMS
PROTON-PROTON INTERACTIONS
RELATIVISTIC RANGE
SHELL MODELS
TIN ISOTOPES