Abstract:
Incomplete fusion processes and estimation of strength of incomplete fusion in heavy ion induced nuclear
reactions have been explored for several combinations of projectile-target nuclei. Dynamics of these reactions is
explained using an optical model. Parameters of the optical model affect the shape and depth of nuclear potential
and hence influence the theoretical predictions. For heavy ion induced reactions, the optical model potential
parameters are not unique and different sets of these parameters may be used for different ranges of mass number
A and incident energy E. To explore the effect of optical model potential parameters, a comparative study of
available experimental data for excitation functions of four systems, 16O + 181Ta, 12C + 165Ho, 14N + 163Dy, and 16O + 74Ge, with corresponding theoretically predicted excitation functions, made by PACE4 using different
sets of optical model potential parameters, has been done. It has been observed that a single set of optical model
potential parameters is not adequate for all the systems. The variations in these parameters change the theoretical
cross-section predictions for various channels considerably, which in turn, change the correspondingly estimated
fraction of incomplete fusion (FICF ). The effect of deformation of target nuclei on fractional incomplete fusion
has also been investigated for the above mentioned systems. FICF has been plotted as a function of deformation
parameter (β2 ) of the target nuclei and it is found to increase as the deformation parameter of the corresponding
target nuclei increases on either side of the intrinsic spherical symmetry
