Energy dependence of incomplete fusion processes in the 16O+181Ta system: Measurement and analysis of forward-recoil-range distributions at Elab≤7 MeV/nucleon

To study the energy dependence of incomplete fusion processes, the recoil range distributions for the reactions 181Ta(16O,xn), 181Ta(16O,pxn), 181Ta(16O,αn), 181Ta(16O,α2n), 181Ta(16O,α3n), and 181Ta(16O,2α3n) have been measured at ≅81-, 90-, and 96 MeV beam energies. The disentanglement of the complete and incomplete fusion processes have been done in terms of full and partial linear momentum transfer from the projectile to the target nucleus. The measurements have been done using recoil catcher technique. The experimentally measured forward recoil range distributions have been interpreted in terms of breakup fusion model. Detailed analysis of the data indicates that incomplete fusion processes have significant contribution at energies as low as ≅5 MeV/nucleon and their contribution is found to increase with energy.