The complete and incomplete fusion cross sections for ${}^9\mathrm{Be}+{}^{124}\mathrm{Sn}$ reaction have been deduced using the online $\gamma$-ray measurement technique. Complete fusion at energies above the Coulomb barrier was found to be suppressed by $~28\%$ compared to the coupled-channels calculations and is in agreement with the systematics of L. R. Gasques et al. [ Phys. Rev. C 79, 034605 (2009)]. Study of the projectile dependence for fusion on a ${}^{124}\mathrm{Sn}$ target shows that, for ${}^9\mathrm{Be}$ nuclei, the enhancement at below-barrier energies is substantial compared to that of tightly bound nuclei.

The system of intermediate fissility ${}^{132}\mathrm{Ce}$ has been studied experimentally and theoretically to investigate the dissipation properties of nuclear matter. Cross sections of fusion-fission and evaporation-residue channels together with light charged particle multiplicities in both channels, their spectra, light charged particle-evaporation residue angular correlations, and mass-energy distribution of fission fragments have been measured. Theoretical analysis has been performed using a multidimensional stochastic approach coupled with a Hauser-Feshbach treatment of particle evaporation. The main conclusions are that the full one-body shape-dependent dissipation mechanism allows the reproduction of the full set of experimental data and that after a time ${\tau }_d=5\times {10}^{-21}$ s from the equilibrium configuration of the compound nucleus, fission decay can occur in a time that can span several orders of magnitude.

Mass distributions of fission fragments arising from the slow quasifission (SQF) process, derived by comparing the measured data with theory for several reactions, show distinct features. Irrespective of fissioning systems, the peak corresponding to lighter fragments in the SQF mass distribution is found to be always at $A\approx 96$, whereas the peak position of the heavier fragments increases linearly with the mass of the dinuclear system. Further, the yield of quasifission events decreases with the increasing projectile energy. These observations within certain model dependence provide clear evidences of shell effect in slow quasifission, where the lighter fragments are possibly some closed-shell nuclei in the mass region $A\approx 96$ (possibly ${}^{96}\mathrm{Zr}$ or ${}^{94}\mathrm{Sr}$). Further, the results from a model independent approach involving multi-Gaussian fit to the high energy data points reaffirm the above conclusion.

The elastic scattering in the reaction $$^{7}$$7 Li+ $$^{208}$$208 Pb was investigated in the bombarding energy range from 25 to 39 MeV. The real and imaginary parts of the optical potential were analyzed by using a phenomenological potential. A dispersion relation analysis is presented in order to investigate the threshold anomaly effect. It is concluded that $$^{7}$$7 Li has an intermediate behavior between the tightly bound nuclei such as $$^{16}$$16 O and the loosely bound nuclei such as $$^{6}$$6 Li where the lack of the threshold anomaly is unambiguously observed. Reaction cross sections are also extracted from the elastic scattering data and its comparison with the ones of other systems has been performed to draw hints on the effect of the breakup channel.

Background: Detailed studies on the effect of the breakup of weakly bound projectile on fission are scarce. Distinguishing the events of compound nuclear (CN) fission from the breakup or transfer induced fission to understand the properties of measured fission fragments is difficult but desirable.