Dynamical aspects of decay of exotic nuclear systems

The inquisitive nature of human mind has led to investigation of the matter from sub-atomic to astronomical scale. The quest of mankind started with making their environment livable in response to various surrounding conditions, resulted into number of discoveries and innovations. During last two centuries the scientific platform got widened, largely, with marvelous advancements in science and technology. Eventually, the work of exploration of matter got highly accelerated with contributions from explorers (scientists) in the field, cut across various nationalities around the world. The studies related to the heavy-ion (HI) fusion reactions and associated nuclear decays are at the forefront of nuclear research these days. As the aim of this thesis is to study the decay dynamics of exotic nuclear systems, so the most of the nuclear systems under study are the neutron-rich or proton rich. In this thesis, the ground state (T=0, ℓ=0) decay of proton rich drip line nuclei are studied under the formalism of preformed cluster decay model (PCM) based on the quantum mechanical fragmentation theory (QMFT). The dynamical cluster-decay model (DCM), which is an extension to PCM, have been used to study different nuclear emissions from hot (T≠=0) and rotating (ℓ≠0) neutron rich and neutron deficient composite systems formed in HI reactions. The only free parameter of DCM, the neck length parameter (ΔR), is optimized with reference to the available experimental data. We have also explored the role of ΔR in the HI reactions at low energy within DCM