Double exchange of particles in heavy ion reactions

A model is presented to study a reaction where there are particles transferred simultaneously from the projectile to the target as well as from the target to the projectile. The $sup 13$C($sup 6$Li,$sup 6$He)$sup 13$N reaction at E/sub L/ = 31.8 MeV is taken as an example and good agreement with the data is obtained. (auth)