The (³He,α) reaction mechanism A study of the angular momentum transfer

Abstract

The γ-rays emitted after the ${}^{163}\text{Dy}\text{(}{}^3\text{He}\text{,αx}\text{n}\text{)}\text{reactions at}\text{E(}{}^3\text{He}\text{) = 45}\text{MeV}$ have been measured. The transferred angular momentum in the reaction is deduced from the side-feeding γ-intensities of the ground bands in the residual ^162−xDy isotopes. With decreasing α-energy the average spin transfer increases from $\text{∼ 5}\text{h}\text{̵}\text{to ∼ 11}\text{h}\text{̵}$. The (³He,α) reaction at these energies is dominated by direct processes. Even at the highest spin transfer the contribution from the compound reaction channel is negligible.