Non-Resonant Breakup of 7Li by Quantum Tunneling

Evidence for quantum tunneling effect was found in the breakup of ⁷Li via continuum states just above the α - t threshold. The quantum tunneling effect was taken into account to investigate re-acceleration of breakup fragments in the target Coulomb field. It is shown that the previously published astrophysical S-factors are most likely Coulomb distorted. A best effort is made to revise S-factors.