EXCITATION-ENERGY IN QUASI-ELASTIC AND TRANSFER-REACTIONS IN O-16-197AT INTERMEDIATE ENERGIES(AU)

Several breakup channels of an excited projectile were studied from me asurements of charged fragments produced in peripheral collisions of O -16 on Au-197 at 50A and 70A MeV. Absolute fragmentation cross section s and projectile and target excitation energies were measured. An impo rtant result is that, with increasing incident energy, target excitati on energy rises faster than projectile excitation. Transfer reactions were also examined and fragmentation cross sections in transfer reacti ons for many channels were estimated. Transfer reactions appear to hav e a fairly large cross section even at 70A MeV. These experimental res ults are compared to data at 32.5A MeV and systematic study of various parameters are presented for a wide range of the intermediate-energy domain.