HEAVY-ION FUSION REACTIONS OF 16O ON SPHERICAL/DEFORMED 144-154Sm TARGETS USING COULOMB AND PROXIMITY POTENTIALS

The fusion excitation functions for the fusion of O-16 on Sm144-154 have been calculated using one dimensional barrier penetration model, taking scattering potential as the sum of Coulomb and proximity potential, with considerations to shape degrees of freedom. The computed fusion cross sections for the reactions of O-16 on Sm-144,Sm-147,Sm-148,Sm-149,Sm-150,Sm-152,Sm-154 are compared with experimental data and coupled channel calculations using the code CCFULL. At and above the barrier the computed fusion cross sections match well with the experimental data, whereas below the barrier, calculations with nuclear surface tension coefficient improved by Reisdorf in the proximity potential with considerations to shape degrees of freedom give reasonably good fit. The good agreement between theory and experiment in the case of O-16 on Sm-144,Sm-147,Sm-148,Sm-149,Sm-150,Sm-152,Sm-154 reactions is equally valid in the prediction of the fusion of O-16 on Sm-145,Sm-146,Sm-151,Sm-153. Reduced reaction cross sections for the fusion of O-16 on Sm-145,Sm-146,Sm-152,Sm-154 have also been described.