Abstract:
The dynamics of incomplete fusion processes has been extensively investigated and
is found to compete with complete fusion at low incident energies (i.e. ≤ 7.0 MeV/A). Recent
reports suggest that the probability of incomplete fusion depends on Qα of the projectile, and
found to be originated from the high input angular momentum provided into the system due
to non-central collisions. Apart from the well documented existence of low energy incomplete
fusion, a strong contradiction on previously established mass-asymmetry systematics has been
noticed recently. It has been found that the incomplete fusion fraction increases with entrance
channel mass-asymmetry for the individual projectiles. Further, a strong dependence of
incomplete fusion on the Coulomb effect (ZP ZT ) has been observed and is found to increase
linearly with ZP ZT , a significantly important approach to understand the breakup fusion
reactions. For better insights into the onset and strength of incomplete fusion in terms of various
entrance channel parameters and to understand the role of high angular momenta in the onset
of incomplete fusion, a quality data have been obtained in a variety of experiments performed at
the Inter-University Accelerator Center (IUAC), New Delhi, India. Some of the recent results are
presented in this paper, conclusively demonstrating the effect of entrance channel parameters on
the onset and strength of incomplete fusion, and the usefulness of incomplete fusion to populate
high-spin states in final reaction products.
