Study of theK39(d, t)K38Reaction atEd=23MeV

The ${}_{}{}^{39}{}_{}{}^{}\mathrm{K}(d, t){}_{}{}^{38}{}_{}{}^{}\mathrm{K}$ reaction has been utilized to study states in ${}_{}{}^{38}{}_{}{}^{}\mathrm{K}$ below an excitation energy of 5 MeV. Spectroscopic factors have been extracted by comparing the data with distorted-wave calculations. For states for which both $l=0\mathrm{}$ and $l=2\mathrm{}$ transitions are allowed, attempts have been made to extract relative admixtures. Two positive-parity states, not previously reported in neutron-pickup experiments, have been observed at $E_x=3.44\mathrm{} \mathrm{and} 3.99$ MeV. Two weak negative-parity states have been observed at $E_x=2.64\mathrm{}$ ($l=1\mathrm{}$) and 4.66 MeV ($l=3\mathrm{}$), indicating the admixture of core-excited configurations in the ground-state wave function of ${}_{}{}^{39}{}_{}{}^{}\mathrm{K}$.