The status of double-phonon giant resonances in nuclei is briefly reviewed. We summarize the presently available experimental data and discuss related theoretical efforts. Emphasis is paid to the electromagnetic excitation in heavy ion collisions at near relativistic energies, a process which yields the largest cross sections for two-phonon giant dipole resonances.
Acta Physica Hungarica Series A, Heavy Ion Physics – Springer Journals
Published: Aug 28, 2009