O16,18(α, He6)O14,16reactions

Abstract

The ($\alpha$, ${}_{}{}^6{}_{}{}^{}\mathrm{He}$) reaction on ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$ and ${}_{}{}^{18}{}_{}{}^{}\mathrm{O}$ has been studied at $E_{\alpha }=58\mathrm{}$ MeV. Although the cross sections are much smaller than the corresponding ($p, t$) cross sections by about a factor of 20, the angular distributions are characteristic of a direct transfer mechanism and are reproduced satisfactorily by distorted-wave theory assuming $\mathrm{LS}$ coupling in ${}_{}{}^6{}_{}{}^{}\mathrm{He}$.