arXiv:nucl-th/9910055·v1·Nuclear Theory
Excitation of multiple giant dipole resonances: from spherical to deformed nuclei
M. V. Andres (1)🇪🇸 · E. G. Lanza (1,4)🇪🇸 · P. Van Isacker (2)🇫🇷 · C. Volpe (3)🇫🇷 · F. Catara(4) ((1)Universidad de Sevilla, Spain; (2)Ganil, Caen, France; (3)Institut de Physique Nucleaire, Orsay, France; (4)INFN and Universita' di Catania, Italy)🇮🇹
Abstract
The effect of deformation on the excitation of multiple giant dipole resonances is studied. Analytical expressions are derived in the framework of the interacting boson model for the energies and E1 properties of giant dipole resonances in spherical and deformed nuclei, and a numerical treatment of transitional nuclei is proposed. Coulomb-excitation cross sections are calculated in U and in the samarium isotopes.
Comments: 12 pages, LateX (elsart); accepted for publication on Phys. Lett. B