Study of the 24Mg(α, 12C) 16O reaction in the energy range Elab = 24.9–27.76 MeV

Abstract

The 24Mg(α, 12C) 16O and 24Mg(α, α') 24Mg reactions have been used to search for resonances in the 28Si compound nucleus. The excitation functions were measured in the energy range between 24.9 and 27.76 MeV. Angular distributions of 12C nuclei and elastic and inelastic scattering of α-particles have been measured at energies corresponding to extrema of excitation functions. Significant anomalies have been found at E ex = 31.5 and 33,1 MeV. The spins and parities of these structures are assigned as 9 − and 11 −, respectively.