Elastic scattering ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$${(}^{14}$N${,}^{14}$N${)}^{10}$B angular distributions were measured at four bombarding energies: 38.1, 42.0, 46.0, and 50.0 MeV. By detecting the recoiling target nuclei complete angular distributions ranging from ${\theta }_{\mathrm{c}.\mathrm{m}.\mathrm{}=14\mathrm{}}$° to 176° were obtained. Normalized cross sections, σ/${\sigma }_R$ were found to be larger than 0.1 for angles greater than 160°. The anomalous behavior at the backward angles is interpreted as partially due to an elastic α-transfer process. The deduced spectroscopic factor for the configuration of an alpha particle coupled to a ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ core in the ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$ ground state is $S_4$=0.65±0.10. The compound elastic contribution is about 20% of the calculated transfer cross section at θ=176° and accounts for 3% of the experimental cross section at this angle.

• Received 18 April 1988

DOI:https://doi.org/10.1103/PhysRevC.38.741