A new measurement of the astrophysical 8Li(α,n)11B reaction

Abstract The excitation function of the 8 Li( α , n ) 11 B reaction was measured while identifying the final state event by event in the region of E cm = 0.7 – 2.6 MeV using a highly efficient detector system and a low-energy 8 Li beam. The results are much improved both in statistics and precisions, and show smaller cross sections than those of previous measurements. A resonance-like structure is found at around E cm = 0.85 MeV .