Complete fusion of 7Li+16O in the region of the Coulomb threshold

Excitation functions of the one- and two-particle evaporation reactions 16O(7Li,chiγ) and 16O(7Li,chiyγ) and 16O(7Li,chiyγ), chi, y = n, p, d, t and α have been measured in steps of 100-160 keV for Esub(li)=4-10 MeV. All yield curves were rather smooth and could well be described by statistical model calculations taking into account one- and two-particle decays. No significant deviations of the total fusion cross section from the reaction cross section as given by the optical model were observed. A critical comparison is performed with earlier data of the same reaction taken at slightly higher energies where drastically reduced fusion cross sections were reported. (orig.)