Giant resonance in f-p shell nuclei studied by inelastic scattering of 80 MeV $^3$He ions
Résumé
Spectra of 48 Ti, 56 Fe, 59 Co and 60 Ni have been investigated for excitation energies of 10–20 MeV by inelastic scattering of 80 MeV 3 He particles. Broad peaks with excitation energies of about 63±1 A − 1 3 MeV and FWHM of 6 MeV have been observed. Much narrower satellite peaks occur at excitation energies about 51±1 A − 1 3 MeV . The angular distributions of the sum of these peaks were compared to extended optical model DWBA calculations which confirm the predominant L = 2 character of the GR. A tentative assignment of L = 2 or 4 was made for the 13.5 MeV satellite peak in 56 Fe. We see no definite evidence for the presence of an L = 1 GR component. (Elsevier)