The 14N(7Be,8B)13C reaction and the 7Be(p,)8B S factor
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abstract
The 14N(7Be,8B)13C reaction was studied using an 85 MeV 7Be radioactive beam. The asymptotic normalization coefficients for the virtual transitions 7Be+p8B were determined from the measured cross section. These coefficients specify the amplitude of the tail of the 8B overlap function in the 7Be+p channel, and were used to calculate the astrophysical S factor for the direct capture reaction 7Be(p,)8B at solar energies S17(0). We find that S17(0)=16.61.9 eVb.