EXCITATION AND DECAY OF GIANT MULTIPOLE RESONANCES IN INTERMEDIATE ENERGY HEAVY-ION REACTIONS

The role of intermediate energy heavy ions in the study of giant multipole resonances is explored, with emphasis on gamma decay coincidence experiments. Experiments on Pb-208 bombarded by 84 MeV/nucleon O-17 are discussed and compared with earlier work at 22 MeV/nucleon. The role of Coulomb excitation in the 84 MeV/nucleon data is emphasized and some consequences for study of isovector resonance strength are explored. A comparison of the excitation and decay of the isovector giant dipole resonance in Pb-208 and Bi-209 excited with 84 MeV/nucleon O-17 scattering is presented.