Further evidence for resonance anomalies in the ¹²C+¹⁶O system

Excitation functions for six nuclides resulting from the ¹⁶O+¹²C reaction, as well as for inelastic scattering to the 3^- state of ¹⁶O, have been measured by gamma -ray techniques in the centre-of-mass energy range E_CM=12.8-18.2 MeV and a complete fusion excitation function deduced. Resonance anomalies, which may be due to the excitation of quasimolecular states, are observed at 14.7, 16.7 17.6 and 18.6 MeV. These and other results are considered in terms of theoretical models for quasimolecular states.