Excitation of anomalous α-14C resonances in the inelastic scattering of 18O on a 12C target

Two broad resonances at 9.33 MeV and 9.65 MeV are observed in the inelastic excitation of ¹⁸O on a ¹²C target at a laboratory energy of 82 MeV. The α-decay of these states has been measured. A coherent sum of J^π = 2⁺ and 3^? is required to fit the correlations. The structure of these states and the excitation mechanism is discussed.