Executive Summary : | During the last couple of years, the pre-compound (PCN) emission process of light fast particles in both light and heavy ion (HI) reactions has been investigated to understand the de-excitation mechanism of the hot compound nucleus (CN) at beam energies above 10 MeV/nucleon. Nevertheless, the complete knowledge of de-excitation process of a hot compound nucleus for particle emission, showing the dependence on mass asymmetry of projectile-target nuclei and on the energy of the incident particles are still far to get emerged. Thus, the pre-compound emission process is still an active area of research in nuclear physics. Needless to mention that the phenomenon of the pre-compound emission process is well understood in light ion induced reactions with proton and alpha-particle beams. With the augmentation in accelerator technology, it has become possible to produce precise beams of heavy ions (Lithium to Uranium) of desired energy. such beams of heavy ions may be used as an experimental tool for extending the periodic table of the atomic mass number in the super heavy element (sHE) region . The present proposal is a part of the investigations of measurement and analysis of cross-sections of the reaction residues produced heavy ion beams 12C, 14N,16O and 19F on several target nuclei 128Te, 159Tb, 169Tm, 175Lu, 181Ta etc., where significant contribution of complete and incomplete fusion reactions have been observed. It will be more feasible to deduce the contribution of pre-compound emission along with complete and incomplete fusion in the proposed projectile-target interactions. Thus, the proposed experimental study may give a compete, comprehensive and conclusive results at energy below 8 MeV/nucleon in heavy ion reactions. The results obtained from the present investigations may able to answer of the most popular problem existing in low energy heavy ion physics study, "Does projectile structure play significant role in the dynamics of the pre-compound emission process in low energy heavy ion reactions"? "Does mass asymmetry of projectile-target combination play any important role in low energy pre-compound emission process"? "Does any systematic behavior of pre-compound emission exist with atomic mass number (A) and excitation energy (E*) of the compound system"? To the best of our knowledge, the above unanswered questions may be resolved in the proposed measurements by deducing contribution of pre-compound emission in heavy ion reactions along with complete and incomplete fusion. As such, the proposed work is expected to give a comprehensive study on low energy heavy ion reactions, which is not exist in literature so far. |