Statistical ensembles and fragmentation of finite nuclei

The statistical models based on different statistical ensembles (micro canonical, canonical and grand canonical) have been widely used to describe the nuclear multifragmentation reaction in heavy ion collisions at intermediate energy. The basic assumption behind this is attainment of statistical equilibrium at the freeze out stage. In such models of nuclear disassembly, the populations of different channels is solely decided by their statistical weights in available phase space. The micro canonical ensemble is applicable in the case of fixed particle number and fixed energy but any practical calculation based on this is extremely difficult because of these two constraints. The main motivation of this work is to formulate a transformation relation so that results from one ensemble can be converted to the other easily with the help of such relation