APS Logo

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.

–

Presenters

  • Jeffery C Blackmon

    Louisiana State University, Department of Physics and Astronomy, Louisiana State University

Authors

  • Jeffery C Blackmon

    Louisiana State University, Department of Physics and Astronomy, Louisiana State University

  • Sudarsan Balakrishnan

    Department of Physics and Astronomy, Louisiana State University, Rutgers University, Louisiana State University

  • L. E Linhardt

    Louisiana State University

  • Lagy Baby

    Department of Physics, Florida State University, Florida State University

  • Dan W Bardayan

    University of Notre Dame

  • Catherine M Deibel

    Louisiana State University, Department of Physics and Astronomy, Louisiana State University

  • H. E Gardiner

    Louisiana State University

  • Evgeniy Koshchiy

    Texas A&M University

  • Kevin T Macon

    Louisiana State University

  • Milan Matos

    Intl Atom Energy Agcy

  • Charlie C Rasco

    Oak Ridge National Laboratory

  • D. Santiago-Gonzalez

    Argonne National Laboratory

  • Grigory V Rogachev

    Texas A&M University College Station, Texas A&M University

  • Michael S. Smith

    Oak Ridge National Laboratory

  • Ingo L Wiedenhover

    Florida State University