Polarized ${}_{}{}^3{}_{}{}^{}\mathrm{He}$ particles have been used to initiate (${}_{}{}^3{}_{}{}^{}\overrightarrow{\mathrm{He}}$, p) reactions on light nuclei. The results obtained have been compared with the available data for (${}_{}{}^3{}_{}{}^{}\mathrm{He}$, $\overrightarrow{\mathrm{p}}$) and the inverse ($\overrightarrow{\mathrm{p}}$, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$) reactions. It is suggested that the reactions proceed predominantly by a direct transfer mechanism and follow a simple reaction model which relates the polarization of the (${}_{}{}^3{}_{}{}^{}\mathrm{He}$, $\overrightarrow{\mathrm{p}}$) to the analyzing power of the (${}_{}{}^3{}_{}{}^{}\overrightarrow{\mathrm{He}}$, p) reaction according to the $S$ transfer. If time-reversal invariance is applied, the present (${}_{}{}^3{}_{}{}^{}\overrightarrow{\mathrm{He}}$, p) results for ${}_{}{}^7{}_{}{}^{}\mathrm{Li}$ and ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$ are in agreement with the ($\overrightarrow{\mathrm{p}}$, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$) measurements on ${}_{}{}^9{}_{}{}^{}\mathrm{Be}$ and ${}_{}{}^{11}{}_{}{}^{}\mathrm{B}$ targets.

NUCLEAR REACTIONS ${}_{}{}^7{}_{}{}^{}\mathrm{Li}({}_{}{}^3{}_{}{}^{}\overrightarrow{\mathrm{He}}, \mathrm{p}){}_{}{}^9{}_{}{}^{}\mathrm{Be}$, ${}_{}{}^9{}_{}{}^{}\mathrm{Be}({}_{}{}^3{}_{}{}^{}\overrightarrow{\mathrm{He}}, \mathrm{p}){}_{}{}^{11}{}_{}{}^{}\mathrm{B}$; $E=14\mathrm{}$ MeV; ${}_{}{}^{12}{}_{}{}^{}\mathrm{C}({}_{}{}^3{}_{}{}^{}\overrightarrow{\mathrm{He}}, \mathrm{p}){}_{}{}^{14}{}_{}{}^{}\mathrm{N}$, $E=33\mathrm{}$ MeV; measured $A_y\left(\theta \right)$.

• Received 12 May 1983

DOI:https://doi.org/10.1103/PhysRevC.28.2515