Fusion calculations for the ^6,7Li+¹⁶O systems

Recently reported measurements of fusion for the ^6,7Li+¹⁶O,¹³C, and ¹²C systems using the characteristic γ-ray yield method were significantly larger than previous measurements for the same systems using the evaporation residue technique. The question of which set of measurements more accurately represents fusion and, indeed, the precise definition of what constitutes fusion is an important one, considering the recent interest in the question of whether fusion is inhibited or enhanced for weakly bound exotic nuclei such as ⁶He and ¹¹Li. We present here fusion cross sections derived from continuum discretized coupled channels (CDCC) calculations using the barrier penetration model (BPM) that agree very well with the characteristic γ-ray method results.