EXPLOSIVE MULTIFRAGMENTATION IN THE S-32-27 REACTION AT 37.5 MEV(AL)NUCLEON/

We describe an experimental study of the S-32+Al-27 reaction at 37.5 M eV/nucleon carried out with the AMPHORA multidetector. A small fractio n of events in which the total charge was detected and which are shown to originate mainly from central collisions have been isolated and co mpared with statistical decay model predictions. Dynamical properties provide strong evidence for a radial directed collective component (bl ast wave) in the fragment energies which dominates the interfragment C oulomb repulsion and the thermal motion.