Dynamical Study of Multifragmentation and Related Phenomena in Heavy-Ion Collisions
Abstract
In the first part of thesis, we shall deal with fragment emission in central collisions studied as a function of beam energy and system mass. Central collisions are also important candidate in view of exploring collective expansion and squeeze out phenomena dan93. We have simulated the central collisions of 20Ne+20Ne, 40Ar+45Sc, 58Ni+58Ni, 86Kr+93Nb, 129Xe+124Sn, and 197Au+197Au. Peak IMF multiplicity is observed to follow power law of form: c Aτtot, with exponent τ close to unity. Next we try to understand the clusterization mechanism in spectator matter fragmentation using simulated annealing clusterization algorithm (SACA) advanced by Puri et al. Earlier recognition of fragments structure (around 60 fm/c) also points towards dynamical origin of fragments. We shall also highlight the importance of momentum dependent interactions in probing nuclear EoS via intermediate energy heavy-ion collisions. Estimation of baryonic entropy would also be discussed.
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