Abstract
Elastic and inelastic scattering of 28.5 MeV alpha particles by Ni 60 , Ni 58 , Ti 48 , Co 59 and Al 27 has been studied. The angular distributions of the prominent group from the 2 + first excited state and the 3 - “anomalous” group for even nuclei were fitted by calculations based on Blair model. The angular distributions of the 4 + groups near 2.5 MeV in Ni 60 , near 2.5 MeV in Ni 58 and near 3.3 MeV in Ti 48 were found to have intermediate phase between the corresponding elastic distribution and the corresponding first 2 + inelastic distribution. On the other hand, the angular distributions of the 2 + groups near 3.1 MeV in Ni 60 , near 3.0 MeV in Ni 58 and near 2.4 MeV in Ti 48 were found to be almost exactly out of phase with the corresponding elastic distributions. Large cross sections of the inelastic alpha scattering to the 2.21– and 3.0–MeV states in Al 27 suggest that these states are the members of a K π =5/2 + rotational band based on the ground state.
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