Analysis of the 19F(p, α)16O reaction

Abstract

An attempt is made to fit quantitatively the 19F(p, α)16O ground-state angular distribution at an energy where direct processes are likely to predominate. The nuclear structures of this reaction favor the direct pickup process. The finite range effects were shown to be large. No unique fit, or choice between ambiguous input parameters, was found to be possible using two forms of the local-energy finite range correction. The overall magnitude was in good agreement with the theoretical spectroscopic factor, as calculated from both LS and jj coupling wave functions.