Study of direct reactions in 6,7Li + 197Au at near barrier energies

Recently, reactions with weakly bound stable nuclei have been extensively studied to investigate the effect of breakup on the fusion mechanisms at energies around the barrier. In fusion with weakly bound stable nuclei, following the breakup of the projectile in the field of target, one of the fragments can be captured by the targets, whereas the other moves away approximately with the beam velocity. This process is referred to as breakup fusion in reactions at near barrier energies. In case of weakly bound nuclei, the coupling to breakup channel is expected to play major role. Also the experimental study with radioactive ion beams indicate that the sub-barrier total reaction cross section is completely dominated by direct reactions, in the form of 1n and 2n stripping. This paper presents the complete measurement of excitation function of direct reactions in 6,7Li + 197Au