Investigation of break-up fusion and Its dependency on target deformation at energy 3-7 Mev/Nucleon

Abstract

Several studies have been focused on heavy ion (HI) induced reactions at low projectile energy. These studies revealed that complete fusion (CF) and incomplete fusion (ICF) are the dominant modes of HI reactions at bombarding energies below 10 MeV/nucleon [1-5]. In HI interactions, many reaction channels are opened, when two heavy ions (heavier than and -particle) are brought in contact with each other within the range of nuclear forces. These reactions provide a platform for the production of various evaporation residues (ERs) with high excitation energy and angular momentum and extract valuable information about the nature of interactions and nuclear structure. Moreover, the ICF reactions are considered to be a promising route for the population of high spin states in evaporation residues in heavy-ion collisions at low energy. It has now become possible to accelerate heavy-ion up to energy ranging from a few MeV/nucleon to several GeV/nucleon with the development of modern charged particle accelerators. Thereafter, the study of HI interactions has attained a central place among the nuclear physics community. The first experimental evidence of ICF was observed by Britt and Quinton [6]. However, a major advancement in the study of ICF took place after the study of Inamura et al. [7], which provided significant information about ICF dynamics from the and#947;-ray multiplicity measurements. The semiclassical theory of HI interaction categorizes the CF and ICF processes on the basis of driving input angular momentum (and#8467;) imparted in the system. The CF process lies in the range of driving input angular momentum , while the dominant contribution from ICF comes from the range as per the sharp cut-off approximation [8, 9]. Here, and are the critical angular momentum for CF and the maximum angular momentum of the system at particular projectile energy. In the CF process, the attractive nuclear potential overcomes the repulsive Coulomb and centrifugal potentials in central collisions.