Role of rotational energy and deformations in the dynamics of Li6+Zr90 reaction

In reference to recent experimental data, the dynamical cluster-decay model (DCM) has been applied to study the neutron evaporation residue (ER) cross sections of intermediate mass nucleus 96Tc⁎ spread over a wide range of incident energy across the Coulomb barrier. In order to analyze the effect of rotational energy in the dynamics of Li6+Zr90 reaction, the cross sections have been calculated using the sticking (IS) and the non-sticking (INS) limits of moment of inertia with inclusion of quadrupole (β2) deformation within optimum orientation approach. The effect of either of the two approaches on the angular momentum, and hence the rotational energy associated with it, is assessed through the fragment mass distribution, preformation factor and the barrier penetrability. Also, the role of deformations is studied through a comparative analysis of decay path for spherical and β2 deformed fragmentation. The calculated evaporation residue cross sections show excellent agreement with the reported data at all incident energies for both spherical and β2-deformed approach. Finally, the incomplete fusion (ICF) process observed due to loosely bound projectile 6Li is addressed within the framework of DCM.