The ${}_{}{}^{46}{}_{}{}^{}\mathrm{Ca}\mathrm{}(d,t)\mathrm{}{}_{}{}^{45}{}_{}{}^{}\mathrm{Ca}$ and ${}_{}{}^{46}{}_{}{}^{}\mathrm{Ca}(d,{}_{}{}^3{}_{}{}^{}\mathrm{He}){}_{}{}^{45}{}_{}{}^{}\mathrm{K}$ reactions have been investigated at an incident deuteron energy of 22.4 MeV. The angular distributions have been compared with distorted-wave calculations, and the spectroscopic strength has been extracted. The transitions to the ${\frac{3}{2}}^{-}$ levels of ${}_{}{}^{45}{}_{}{}^{}\mathrm{Ca}$ at 1.435 and 2.82 MeV were observed with a total strength $C^{2}S=0.3\mathrm{}$. The spectroscopic factor of the ground-state transition for the ${}_{}{}^{46}{}_{}{}^{}\mathrm{Ca}(d,{}_{}{}^3{}_{}{}^{}\mathrm{He}){}_{}{}^{45}{}_{}{}^{}\mathrm{K}$ reaction was found to be $C^{2}S=1.5\mathrm{}\pm 0.3$. This suggests the probability of measurable core-excitation admixtures in the ground-state configuration of ${}_{}{}^{45}{}_{}{}^{}\mathrm{K}$.

• Received 8 June 1971

DOI:https://doi.org/10.1103/PhysRevC.4.1621