Absolute cross sections for a number of binary processes in the ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$+${}_{}{}^{159}{}_{}{}^{}\mathrm{Tb}$ reaction have been determined by use of $\gamma$-particle coincidence techniques. The data are used to test a "sum-rule model" of complete- and incomplete-fusion reactions. The model assumes the reaction probabilities to be scaled by the available phase space and to be constrained additionally by the entrance-channel angular momentum limitations.

• Received 7 May 1980

DOI:https://doi.org/10.1103/PhysRevLett.45.606