(p,t) and (p,He3) reactions onK39

Angular distributions of the ${}_{}{}^{39}{}_{}{}^{}\mathrm{K}\mathrm{}(p,t)\mathrm{}{}_{}{}^{37}{}_{}{}^{}\mathrm{K}$ and ${}_{}{}^{39}{}_{}{}^{}\mathrm{K}(p,{}_{}{}^3{}_{}{}^{}\mathrm{He}){}_{}{}^{37}{}_{}{}^{}\mathrm{Ar}$ reactions between 3° and 55° have been measured at 40 MeV bombarding energy. The experimental differential cross sections of the transitions to several of the low-lying mirror pairs of even-parity final states in ${}_{}{}^{37}{}_{}{}^{}\mathrm{K}$ and ${}_{}{}^{37}{}_{}{}^{}\mathrm{Ar}$ are compared to results of microscopic distorted-wave Born-approximation calculations based on current shell-model wave functions. The sensitivity of these distorted-wave Born-approximation calculations to optical model parameters is studied.