The 17O(p, α)14N reaction: Physics and astrophysics

Details The 17O(p, α)14N reaction: Physics and astrophysics The 17O(p, α)14N reaction: Physics and astrophysics

Nov 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979nupha.331..155k&link_type=abstract

Nuclear Physics A, Volume 331, Issue 1, p. 155-179.

Physics

Nuclear Physics

7

Nuclear Reactions

Scientific paper

The nucleus 18F has been studied using the 17O(p,α)14N reaction over the energy range Ep = 400 to 1400 keV with thin Ti17O2 targets. New resonances at Ep = 525, 688, 1015, 1276 and 1338 keV have been discovered. The strengths for all resonances in this energy range have been measured and the entire cross section in this region has been fitted using the R-matrix formalism of Lane and Thomas. Some discussion is presented concerning the values of the boundary condition parameters used in the R-matrix fit and two sets of results are presented corresponding to two different treatments of the boundary conditions.
The 17O(p, α)14N cross section has been extrapolated to astrophysical energies using an R-matrix calculation incorporating the partial widths obtained from the data from Ep = 400 to 1400 keV. These results are compared with previous 17O(p, α)14N calculations and the 17O(p, γ)18F direct capture calculation of Rolfs and Rodney.
Present address: TRIUMF, Vancouver, British Columbia V6T IW5.

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