Transitional phenomena in intermediate energy heavy-ion reactions

Many studies have been performed pertaining to the subject of nuclear matter phase transitions and also related transitions in nuclear reaction decay mechanism. In Chapter 3 we present a study of central heavy-ion collisions in the entrance channels, ;Recent theoretical calculations based on transport theories have predicted the occurrence of exotic break-up geometries at intermediate energies. These geometries include bubbles and toroids, which are considered non-compact because of their hollow centers, as well as disks. Experimental searches to date have not been able to confirm these predictions. However one group has shown an agreement between their data, for one system at one beam energy, and emission from a toroidal configuration as opposed to a single-source ellipsoidal configuration. In Chapter 4 we present a study of central collisions in the...