Search

Research into heavy-ion fusion, a key area of modern nuclear reaction physics, has flourished in recent decades pursuant to developments in accelerator technology. The primary goal of studying heavy-ion reactions is to gain knowledge about the underlying processes and how they are affected by entrance channel parameters, such as beam energy, angular momentum and mass asymmetry. The fusion mechanism of non-α-cluster projectiles, such 14N and 19F, has been studied in the low-energy zone. It has been challenging to analyze the contributing degrees of freedom in such reactions due to the absence of experimental data. The present study reports the measurement of residual cross-sections from the 19F induced reaction on 93Nb within the energy range of 3–6 MeV/A. The stack foil activation technique followed by offline γ spectroscopy was employed to measure the cross-sections of residues populated in the reaction. The experimental data were compared with theoretical predictions from statistical model code PACE4 to probe the underlying reaction dynamics. The imitation of xn and pxn channel data grossly by model code suggests the production of residues via the complete fusion (CF) mode, while the enhancement observation in α-channel cross-sections hints at the signatures of incomplete fusion (ICF) in addition to the dominant CF. Thus, the ICF strength fraction (FICF) was calculated. Moreover, the estimated incomplete fusion fraction has been used to study the effect of several entrance channel parameters on incomplete fusion reaction dynamics. The present analysis shows the presence of strong clustering in the 19F projectile as α and 15N. [ABSTRACT FROM AUTHOR]

In order to study complete and incomplete fusion, the excitation functions for several residues produced in the Nb and Nb systems have been measured, employing activation and offline -ray spectrometric technique. The measured excitation functions have been compared with those calculated theoretically using the statistical model code PACE4. A significant enhancement in the measured excitation functions of the evaporation residues produced in -particle(s) emission channels over the PACE4 predictions have been observed, which indicates the occurrence of incomplete fusion reaction process. The relative probability of incomplete fusion in fusion dynamics, obtained in terms of incomplete fusion strength function has also been deduced for both systems. In the present work an attempt has been made to have an exclusive study on aforementioned entrance channel parameters on C, and O induced reactions with various target systems. The is found to depend strongly on Coulomb factor and mass asymmetry of interacting partners. It is observed that proper account of these entrance channel parameters is much essential to conclusively explain the incomplete fusion reactions. [ABSTRACT FROM AUTHOR]