RESONANT EFFECTS IN THE C-12-12-]BE-8(GS)+O-16(GS) REACTION AROUND E(CM)=32.5 MEV(C)

The C-12 + C-12 --> Be-8(gs) + O-16(gs) reaction has been studied at c .m. energies of 27.9, 32.5 and 35.0 MeV. The energy dependence of the cross section is consistent with a resonant behaviour like the one obs erved for two C-12 nuclei excited in a very deformed state in the fina l channel. The angular distributions for the two reactions show also a similar oscillatory behaviour. The analysis suggests that the reactio n proceeds through the formation of an intermediate state with a compl ex nature, involving largely deformed configurations as well as almost spherical ones.