Probing dynamic evolution in intermediate energy collisions

Molecular dynamics calculations which are employed to model light particle emission in nuclear collisions at intermediate energies suggest that coales cence model analyses may be used to probe the time evolution of these syste ms and to provide information on the degree of thermal, chemical and isospi n equilibrium achieved at particular stages of this evolution. This talk di scusses the application of coalescence model analyses to explore light part icle emission in reactions between 47A MeV projectiles and medium mass targ ets. The results provide evidence for increasing expansion of the hot compo site nuclei as the projectile mass increases. Densities and temperatures of the freeze-out configurations in multi-fragmenting systems are derived.