Angular distributions of vector analyzing power, $A_y$, were measured for the ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$($\overrightarrow{p}$,$d$)${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ and ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$($\overrightarrow{p}$,$d$)${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ reactions. These analyzing powers were measured for each reaction at seven energies, 100 keV apart, which spanned the same excitation-energy range in the compound nuclei, ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ and ${}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, as existing measurements of the outgoing proton polarization, $P_y$, in the inverse reactions, ${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$($d$,$\overrightarrow{p}$)${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$ and ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$($d$,$\overrightarrow{p}$)${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$. We find general agreement between $P_y$ and $A_y$ except in a region where the $P_y$ measurements are known to be difficult to make. We are not yet convinced that this difference constitutes evidence for a violation of time-reversal invariance.

NUCLEAR REACTIONS ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$($\overrightarrow{p}$,$d$)${}_{}{}^{10}{}_{}{}^{}\mathrm{B}$ measured $A_y(\theta ,E)$ for $E=11.34\mathrm{} \mathrm{to} 11.94$ MeV. ${}_{}{}^{13}{}_{}{}^{}\mathrm{C}$($\overrightarrow{p}$,$d$)${}_{}{}^{12}{}_{}{}^{}\mathrm{C}$ measured $A_y(\theta ,E)$ for $E=13.79\mathrm{} \mathrm{to} 14.39$ MeV.

• Received 5 October 1981

DOI:https://doi.org/10.1103/PhysRevC.25.1168