Differential cross sections at 22.5° are reported for ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}\mathrm{}(p,d)\mathrm{}{}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ to the ground state and first excited state which are characterized as $1p_{\frac{1}{2}}^{}{}_{}{}^{-1\mathrm{}}$ and $1p_{\frac{3}{2}}^{}{}_{}{}^{-1\mathrm{}}$ states. These results on the energy variation and previous ones on angular distributions show a prevailing momentum transfer ($Q$) dependence as has been observed earlier for ${}_{}{}^4{}_{}{}^{}\mathrm{He}\mathrm{}(p,d)\mathrm{}{}_{}{}^3{}_{}{}^{}\mathrm{He}$. We discuss this apparent scaling of the ($p,d$) cross section in the variable $Q$ and its implication on the question of the reaction mechanism in comparison with analogous information from other nucleon removal reactions.

NUCLEAR REACTIONS ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}\mathrm{}(p,d)\mathrm{}{}_{}{}^{12}{}_{}{}^{}\mathrm{C}$, $T_p=200\mathrm{}-500$ MeV, ${\theta }_d=22.5\mathrm{}°$; measured $\sigma \left(T_p\right)$, discussed momentum transfer dependence and reaction mechanisms.

• Received 6 August 1979

DOI:https://doi.org/10.1103/PhysRevC.21.675