RESONATING-GROUP STUDY AND IMPORTANCE OF EXCHANGE EFFECTS IN THE ALPHA + LI-6 SYSTEM

The resonating-group method in the one-channel approximation is used to investigate the α + 6Li system. The result shows that, especially at relatively high energies, reasonable agreement with experiment can be obtained. In particular, the cross-section rise in the backward angular region is well accounted for. The effects of internuclear antisymmetrization, represented by various nucleon-exchange terms in the kernel function, have also been carefully examined. Here some of the interesting findings are that the blocking effect is quite significant in this system and the two-exchange terms (sometimes even the three-exchange terms) seem to have only minor influence on the scattering cross section. © 1979.