TRANSFER AND BREAK-UP REACTIONS IN THE 30-A.ME(V)NE-22-93 SYSTEM(NB)

Peripheral interactions of the Ne-22 + Nb-93 system at 30 A . MeV inci dent energy have been investigated using the forward 48 CsI scintillat ors of the AMPHORA multidetector array for the detection of light char ged particles at forward angles. In addition fragments have been ident ified near the grazing angle in 4 Si-CsI telescopes. It is found that the transfer probability remains large at this intermediate energy. Th e stripping of one or two nucleons from the projectile to the target a nd the pick-up of one nucleon have been clearly observed. Binary quasi -projectile break-up events involving emission of one alpha are domina nt. Dissociation of the projectile into up to five products has also b een observed. The production of fragments is deduced to result mainly from sequential decay of the primary fragments rather than from a dire ct break-up process. The yields of fragments, except for the lightest ones, have been reproduced in the framework of a random-walk model.