ROLE OF THE BREAKUP PROCESS IN THE CA-48(NE-20, NE-19-N) REACTION AT 48A MEV

A study of the reaction Ca-48(Ne-20,Ne-19 n) at 48A MeV has been perfo rmed at the GANIL facility. The inclusive excitation spectrum above 12 MeV excitation is dominated by a broad structureless bump. Calculatio ns performed in the framework of the Bonaccorso-Brink model predict th at the absorption process (transfer +inelastic breakup) dominates over the elastic breakup process. Comparison of the neutron multiplicity c alculated in a statistical model with the measured one confirms a sign ificant contribution of the direct processes (elastic and inelastic br eakup). The neutron yield to the ground state of the Ca-48 is maximal in the forward direction. Comparisons with calculated neutron angular distributions show the effect of the final state interaction.