Direct reaction analysis of 19F(p,a)16O below the Coulomb barrier

Details Direct reaction analysis of 19F(p,a)16O below the Coulomb barrier Direct reaction analysis of 19F(p,a)16O below the Coulomb barrier

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991phrvc..44..952h&link_type=abstract

Physical Review C (Nuclear Physics), Volume 44, Issue 3, September 1991, pp.R952-R955

Physics

Nuclear Physics

15

Elementary Particle Processes

Scientific paper

The reaction 19F(p,α)16O (g.s.) is analyzed in terms of the distorted-wave Bonn approximation at energies below the Coulomb barrier. We calculate differential cross sections at 250, 350, and 450 keV as well as excitation functions between 150 and 850 keV and compare with experimental data. The astrophysical S factor is determined. We conclude that a direct reaction mechanism alone can account for the observed sub-Coulomb cross section below about 500 keV.

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