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Study of participant-spectator matter formed in a heavy-ion collision

Heavy-ion collisions at intermediate energies offer an opportunity of producing nuclear systems under the extreme conditions of temperature and density. At high excitation energies, the colliding nuclei may break-up into several small and intermediate size fragments followed by the emission of large number of nucleons. The fragmentation of colliding nuclei into several pieces of different sizes is a complex phenomenon. This may be due to the interplay of the correlations and fluctuations emerging in a collision. Several studies, in literature, have been made to check the fragmentation pattern. It is found that fragmentation pattern depends on the size of the colliding nuclei, incident energy as well as impact parameter [1,2]. Sood and Puri [3] checked the system size dependence of average and maximum central density, temperature, collision dynamics, and participant and spectator matter, as well as the time zone for hot and dense nuclear matter at the energy of vanishing flow and observed a power law dependence of various quantities. So far, no study exists, in the literature, at the energy of maximal production of intermediate mass fragments (IMFs). Here, we plan to the check system size dependence of all these quantities at energies at which the maximal production of IMFs occurs. This study is made within the framework of quantum molecular dynamics model, which is described in detail in Refs. [4-6].