Examining the E_x = 7262 and 7249 keV States of Fluorine-19 with the 15N(alpha,gamma)19F Reaction

POSTER

Abstract

Properties of important neon-19 levels affect the production of the radioisotope fluorine-18 in novae and can be constrained from studies of the mirror nucleus fluorine-19.  The 15N(a,g)19F reaction has been used to study the astrophysically important but relatively unexamined region of 19F between E_x=7.0-7.3 MeV (E_a ~ 3.9-4.2 MeV).  A previously known 19F state at E_x=7.262 MeV was studied and a new higher spin state was discovered near 7.249 MeV.  Measured information for these states include branching ratios and resonance strengths from which the gamma decay widths can be extracted.  The measurement and preliminary analysis will be presented.

*This work has been supported in part by the U. S. National Science Foundation (Grants No. PHY-1559848 and No. PHY-2050527). Additionally, NSF grant PHY-2011890 funds the University of Notre Dame's Nuclear Science Laboratory where the work took place.

Publication: None yet- the experiment will likely result in a publishable paper but this has not been written yet.

Presenters

  • Graham L O'Donnell

    • Florida State University

Authors

  • Graham L O'Donnell

    • Florida State University

  • Dan W Bardayan

    • University of Notre Dame

  • Jacob Allen

    • University of Notre Dame

  • Patrick D O'Malley

    • University of Notre Dame

  • Drew Blankstein

    • University of Notre Dame

  • Chevelle Boomershine

    • University of Notre Dame

  • Sydney Coil

    • University of Notre Dame

  • Richard J deBoer

    • University of Notre Dame
    • The Joint Institute for Nuclear Astrophysics, Department of Physics, University of Notre Dame, Notre Dame, Indiana 46556, USA

  • August Gula

    • University of Notre Dame

  • Samuel L Henderson

    • University of Notre Dame

  • Shane Moylan

    • University of Notre Dame

  • Daniel Robertson

    • University of Notre Dame

  • Edward J Stech

    • University of Notre Dame