The <sup>14</sup>O(alpha,p)<sup>17</sup>F Reaction Rate and Type I X-ray Bursts
ORAL
Abstract
The 14O(α,p)17F reaction rate influences energy production in the hot-CNO cycle and breakout to a thermonuclear runaway in Type I X-ray bursts. We performed a comprehensive R-matrix analysis of 5 different 17F+p data sets including elastic scattering, inelastic scattering, and the 17F(p,α)14O reaction. Two distinct solutions with differing Jπ spin-parity assignments for resonance parameters were found that equally well describe all the data sets. A new 14O(α,p)17F reaction rate is recommended that is a factor of 2 to 3 larger than that in the REACLIB database. A 1σ uncertainty band is also presented that includes results from both solutions and is dominated by Jπ assignments and the uncertain Γα for states near Ex ≈ 6 MeV in 18Ne.
*This work was supported by the U.S. Department of Energy, Office of Nuclear Physics and by the U.S. National Science Foundation, with high performance computing resources provided by Louisiana State University.
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Presenters
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Jeff C Blackmon
- Louisiana State University
- Department of Physics and Astronomy, Louisiana State University