ANGULAR-DISTRIBUTIONS AND FORWARD RECOIL RANGE DISTRIBUTIONS OF RESIDUES CREATED IN THE INTERACTION OF C-12 AND O-16 IONS WITH RH-103

We have measured the angular distributions and the forward recoil rang e distributions of residues produced in the interaction of, respective ly, 151, 228 and 402 MeV C-12 ions with Rh-103 and the forward recoil range distributions of residues produced in the interaction of 303 MeV O-16 ions with Rh-103. These data have been successfully reproduced b y a theory which assumes that the dominant mechanisms are complete and incomplete fusion of the projectile with the target and single nucleo n transfers from the projectile to the target and predicts that, start ing from an incident energy of about 250 MeV, a large fraction of the residues has a mass and charge very close to those of the target nucle us. This is because, at incident energies of a few hundred MeV, a larg e fraction of the kinetic energy of C-12 and O-16 is carried away by f ast ejectiles which then leave behind the intermediate equilibrated nu clei with a rather small excitation energy and small forward linear mo mentum. (C) 1998 Elsevier Science B.V.