States populated in the ${}_{}{}^{15}{}_{}{}^{}\mathrm{N}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$,d)${}_{}{}^{19}{}_{}{}^{}\mathrm{F}$ reaction at 22 MeV are compared with those in ${}_{}{}^{16}{}_{}{}^{}\mathrm{O}$(${}_{}{}^6{}_{}{}^{}\mathrm{Li}$,d)${}_{}{}^{20}{}_{}{}^{}\mathrm{Ne}$ at the same energy. Cross section ratios are in good agreement with a weak-coupling model, in contrast to previous observations via the (${}_{}{}^7{}_{}{}^{}\mathrm{Li}$,t) reaction. Two strong transitions are observed to states at $E_x=8.288\mathrm{} \mathrm{and} 8.957$ MeV in ${}_{}{}^{19}{}_{}{}^{}\mathrm{F}$. The measured angular-distribution shapes and alpha-transfer strengths for these states are consistent with their being, respectively, the ${\frac{13}{2}}^{-}$ and ${\frac{11}{2}}^{-}$ members of the $K^{\pi }={\frac{1}{2}}^{-}$ band in ${}_{}{}^{19}{}_{}{}^{}\mathrm{F}$. A comparison between the measured alpha-particle widths for these states and the single-particle alpha widths calculated in a Woods-Saxon well supports the above assignments.

• Received 13 January 1984

DOI:https://doi.org/10.1103/PhysRevC.29.1765