Photon-decay modes of the giant dipole resonance in even- A Nd isotopes

Journal Article · Sat Nov 30 23:00:00 EST 1991 · Physical Review, C (Nuclear Physics); (United States)

DOI:https://doi.org/10.1103/PhysRevC.44.2372· OSTI ID:5134289

Hoblit, S D; Nathan, A M ^[1]

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1. Nuclear Physics Laboratory and Department of Physics, University of Illinois at Urbana-Champaign, Champaign, Illinois 61820 (United States)

The photon-decay modes of the giant dipole resonance (GDR) in the nuclei {sup 142,146,148,150}Nd were investigated via elastic and inelastic photon scattering. Considerable inelastic scattering was seen into the first excited state of each nucleus. In {sup 148}Nd and {sup 150}Nd, scattering into several higher levels was also resolved and found to be quite weak. The data are interpreted in the context of both the dynamic collective model and interacting boson model. In these models, the photon decays of the GDR to excited states are a consequence of the coupling between the giant resonance and collective surface degrees of freedom, such as rotations and vibrations. The present data provide the first experimental test of the photon-decay predictions of these models across an entire transitional chain. Both models give an excellent account of the data.

• OSTI ID: 5134289
• Journal Information: Physical Review, C (Nuclear Physics); (United States), Journal Name: Physical Review, C (Nuclear Physics); (United States) Vol. 44:6; ISSN 0556-2813; ISSN PRVCA
• Country of Publication: United States
• Language: English

Related Subjects

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73 NUCLEAR PHYSICS AND RADIATION PHYSICS
COLLECTIVE MODEL
DECAY
E1-TRANSITIONS
ENERGY-LEVEL TRANSITIONS
EVEN-EVEN NUCLEI
GAMMA DECAY
GIANT RESONANCE
INTERACTING BOSON MODEL
INTERMEDIATE MASS NUCLEI
ISOTOPES
MATHEMATICAL MODELS
MULTIPOLE TRANSITIONS
NEODYMIUM 142
NEODYMIUM 146
NEODYMIUM 148
NEODYMIUM 150
NEODYMIUM ISOTOPES
NUCLEAR DECAY
NUCLEAR MODELS
NUCLEAR REACTIONS
NUCLEI
PHOTONUCLEAR REACTIONS
RARE EARTH NUCLEI
RESONANCE
SHELL MODELS
STABLE ISOTOPES