Measurements of the energies, strengths and partial widths for the E<sub>c.m.</sub> = 1323 and 1487 keV resonances in the <sup>15</sup>N(α, γ)<sup>19</sup>F reaction

ORAL

Abstract

For many years, the production site of fluorine has been debated. Observational evidence has confirmed that Asymptotic Giant Branch (AGB) stars can produce 19F via the 15N(α, γ)19F reaction, making this environment at least one likely production site. Recent measurements of the resonances at Ecm = 1323 and 1487 keV have indicated discrepancies in resonance energies, strengths, and partial widths that may affect the 19F production rate in AGB stars. To investigate these discrepancies, a gamma spectroscopy measurement was performed at the Nuclear Science Laboratory at the University of Notre Dame. The measurement results and their impacts will be discussed in this talk.

*This research is supported by the National Science Foundation (NSF) under Grants No. PHY-2011890.

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Presenters

  • Ruoyu Fang

    • University of Notre Dame

Authors

  • Ruoyu Fang

    • University of Notre Dame

  • Joachim Goerres

    • University of Notre Dame

  • Shane Moylan

    • University of Notre Dame

  • Adam T Sanchez

    • University of Notre Dame

  • Khachatur Manukyan

    • University of Notre Dame

  • Thomas L Bailey

    • Univeristy of Notre Dame
    • Notre Dame Physics
    • University of Notre Dame

  • Scott R Carmichael

    • University of Notre Dame

  • Richard J deBoer

    • University of Notre Dame

  • Jes Koros

    • University of Notre Dame

  • Kevin Lee

    • University of Notre Dame

  • Miriam Matney

    • University of Notre Dame

  • John P McDonaugh

    • University of Notre Dame

  • Daniel Robertson

    • University of Notre Dame

  • Javier Rufino

    • University of Notre Dame

  • Edward Stech

    • University of Notre Dame

  • Manoel Couder

    • University of Notre Dame