No abstract

A steeper fall of fusion excitation function, compared to the predictions of coupled-channel (CC) models, at energies below the lowest barrier between the reaction partners, is termed as deep sub-barrier fusion hindrance. This phenomenon has been observed in many symmetric and nearly symmetric systems. Different physical origins of the hindrance have been proposed though a complete understanding is yet to be achieved. This work reports the measurement of the fusion (evaporation residue) cross sections for the system 19 F+ 181 Ta, from above the barrier down to the energies where fusion hindrance is expected to come into play. CC calculation with standard Woods-Saxon potential gives a fair description of the fusion excitation function down

No abstract

No abstract

Abstract:The influence of static quadrupole and hexadecapole (positive & negative) deformation of targets are studied using eleven different versions of nuclear potentials.