Excitation-energy dependence of the giant dipole resonance width
- 13 July 1992
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 69 (2) , 249-252
- https://doi.org/10.1103/physrevlett.69.249
Abstract
High-energy γ rays have been measured in coincidence with heavy fragents in deeply inelastic reactions of Ti at 18.5 MeV/nucleon. The giant dipole resonance (GDR) strength function is deduced from an analysis of the photon spectra within the statistical model. The GDR width Γ is studied as a function of the fragment excitation energy . A saturation at about Γ=10 MeV is observed for /A≥1.0 MeV/nucleon.
Keywords
This publication has 18 references indexed in Scilit:
- Nonperturbative study of the damping of giant resonances in hot nucleiPhysical Review Letters, 1992
- Oblate deformed shapes of hot rotating nuclei deduced from giant-dipole-resonance decay studiesPhysical Review Letters, 1990
- High energy gamma-ray production in nuclear reactionsProgress in Particle and Nuclear Physics, 1989
- Saturation of the width of the giant dipole resonance at high temperaturePhysical Review Letters, 1989
- Giant resonances in excited Sn isotopesPhysical Review C, 1987
- Limits of collective motion in hot nuclear matterPhysical Review Letters, 1987
- Gamma Decay of Isovector Giant Resonances Built on Highly Excited States inPhysical Review Letters, 1986
- Dependence of the Giant Dipole Strength Function on Excitation EnergyPhysical Review Letters, 1982
- A large area parallel plate avalanche counterNuclear Instruments and Methods, 1976
- Measurements of the giant dipole resonance with monoenergetic photonsReviews of Modern Physics, 1975