The absolute cross sections for a number of different reactions resulting from the bombardment of ${}_{}{}^{63,65}{}_{}{}^{}\mathrm{Cu}$ with 38.5-, 41.0-, 43.5-, 46.0-, 48.5-, and 51.0-MeV ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ ions were determined from $\gamma$-ray yields observed from the decay of resulting radioactivities, and from yields of in-beam $\gamma$ rays. The total cross section was compared to an optical model calculation and to a parabolic barrier potential calculation. The relative population of the reaction products was compared to calculations for the statistical decay of a compound nucleus by $n$, $p$, and $\alpha$ evaporation. This model does account for the general features of the experimental results, and agrees reasonably well with the stronger exit channels. A summary of the general features of the ${}_{}{}^{58,60,61}{}_{}{}^{}\mathrm{Ni}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}, X)$ and ${}_{}{}^{63,65}{}_{}{}^{}\mathrm{Cu}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}, X)$ reactions is included.

NUCLEAR REACTIONS ${}_{}{}^{63,65}{}_{}{}^{}\mathrm{Cu}({}_{}{}^{16}{}_{}{}^{}\mathrm{O}, X)$, $E_{{}_{}{}^{16}{}_{}{}^{}\mathrm{O}}=38.5, 41.0, 43.5, 46.0, 48.5, \mathrm{and} 51.0$ MeV; measured $E_{\gamma }$, $I_{\gamma }$; deduced $\sigma \mathrm{}\left(E\right)\mathrm{}$.

• Received 25 June 1975

DOI:https://doi.org/10.1103/PhysRevC.12.1529