抄録
The (α, d) reactions in Mg24, Si28, S32 and Ca40 have been studied by using 29.0 MeV alpha particles. The energy spectra of deuterons obtained were dominated by two or more strongly excited levels. Levels at 2.73, 3.64 4.06 and 4.79 MeV of Cl34 are identified to be 2−, 5−, 3− and 4− states, respectively, which arise from a (d3⁄2 f7⁄2) configuration, by the use of the relation between the particle-particle and the particle-hole interaction energies, which is given by the shell theory. Levels at 3.60 MeV of Al26 and 4.17 MeV of P30 are identified to have the same (d3⁄2 f7⁄2) 5 configuration as the 3.64 MeV level of Cl34 from their large spectroscopic amplitude, the similarity of their angular distribution and the relationship between their reaction Q values and the mass number of the residual nuclei. Levels at 7.11 MeV of P30, 5.23 MeV of Cl34 and 0.60 MeV of Sc42 are identified to have a (f7⁄2)27 configuration from the reason mentioned above and the results of the DWBA calculation.
