Abstract
Differential cross sections and analyzing powers for (d→,tN were measured up to 25 MeV excitation energy with 88 and 89 MeV polarized deuteron beams and magnetic spectrographs. States of up to 18.53 MeV have been studied in two experiments with overall resolutions of 25–70 keV, and j transfers were determined from their characteristic analyzing powers. Mixtures of different j transfers could be determined for those states where mixing was significant. Exact finite-range distorted-wave Born approximations calculations were used to deduce l transfers and spectroscopic strengths. The observed summed spectroscopic strength is 88% of the shell-model sum rule. Firm lower limits and tentative upper limits for six (,T and (,T residual two-nucleon matrix elements are deduced. Comparison with the widely used Cohen-Kurath matrix elements shows good agreement for four terms, but significant quantitative disagreement for the (,1 and (,1 terms. We also see significantly more than the predicted mixing for the 3.948 MeV ,0 state. No appreciable pickup of s-d shell admixtures was seen up to 25 MeV excitation.
- Received 3 March 1989
DOI:https://doi.org/10.1103/PhysRevC.40.39
©1989 American Physical Society