Droplet model of the giant dipole resonance

Journal Article · Wed Jun 01 00:00:00 EDT 1977 · Phys. Rev., C; (United States)

DOI:https://doi.org/10.1103/PhysRevC.15.2032· OSTI ID:7256177

Myers, W D; Swiatecki, W J; Kodama, T; El-Jaick, L J; Hilf, E R

The nuclear giant dipole resonance is discussed using a macroscopic model with two new features. The motion is treated as a combination of the usual Goldhaber-Teller displacement mode and the Steinwedel-Jensen acoustic mode, and the restoring forces are all calculated using the droplet model. The A dependence of the resonance energies is well reproduced without any adjustable parameters, and the actual magnitude of the energies serves to fix the value of the effective mass m* used in the theory. The giant dipole resonance is found to contain a large component of the Goldhaber-Teller type of motion, with the Steinwedel-Jensen mode becoming comparable for heavy nuclei. The width GAMMA of the giant dipole resonance is estimated on the basis of an expression for one-body damping.

• Research Organization: Nuclear Science Division, Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 7256177
• Journal Information: Phys. Rev., C; (United States), Vol. 15:6
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
GIANT RESONANCE
DROPLET MODEL
CROSS SECTIONS
ELECTRIC DIPOLES
ENERGY DEPENDENCE
LEVEL WIDTHS
MASS NUMBER
NEUTRON SPECTRA
PROTON SPECTRA
DIPOLES
MATHEMATICAL MODELS
MULTIPOLES
NUCLEAR MODELS
RESONANCE
SPECTRA
653001* - Nuclear Theory- Nuclear Structure
Moments
Spin
& Models