Configuration mixing in Co56 and Sc46 using (d→,α) reactions

Two-nucleon spectroscopic amplitudes are investigated using cross-section measurements and tensor analyzing powers for the (Ni(d(over arrow pointing right),alpha)Co)-Ni-58-Co-56 and (Ti(d(over arrow pointing right),alpha)Sc)-Ti-48-Sc-46 reactions. Angular distributions of cross sections, and analyzing powers A(y), A(xx), and A(yy), were measured in steps of 5-degrees from 10-degrees to 65-degrees at a bombarding energy of 22 MeV. Data were analyzed using full finite-range DWBA calculations including a realistic alpha-particle wave function. The L-mixing ratios for several strong unnatural-parity transitions have been determined from comparison of calculations with analyzing power data. These ratios are compared to predictions of shell-model calculations to deduce predominant two-nucleon configurations.