The ${}_{}{}^2{}_{}{}^{}\mathrm{H}(\overrightarrow{\mathrm{d}},\gamma ){}_{}{}^4{}_{}{}^{}\mathrm{He}$ reaction observables resulting from $M1\mathrm{}$, $E1\mathrm{}$, $M2\mathrm{}$ and $E2\mathrm{}$ transitions are studied quantitatively. The calculations are in agreement with recent data for the reaction vector ($A_y$) and tensor ($A_{\mathrm{yy}}$) analyzing powers at 5 MeV center of mass energy and also with the best available theoretical predictions for the ${}_{}{}^4{}_{}{}^{}\mathrm{He}D$ state wave function.

• Received 14 July 1986

DOI:https://doi.org/10.1103/PhysRevC.34.1497