$^{19}$Ne states studied with the new JENSA gas jet target

ORAL

Abstract

The observation of $^{18}$F decay in novae would provide a direct test of nova models. To interpret such observations, the nuclear reactions that create and destroy $^{18}$F in novae must be understood. The destruction primarily occurs through the $^{18}$F($p,\alpha$)$^{15}$O reaction via resonances from states in $^{19}$Ne. Significant uncertainties remain concerning the properties of these states near the proton threshold at 6411 keV. We have used the newly-constructed JENSA (Jet Experiments in Nuclear Structure and Astrophysics) gas jet target at Oak Ridge National Laboratory to study these levels via the $^{20}$Ne($p,d$)$^{19}$Ne reaction. Deuterons were detected in the SIDAR Silicon Detector Array and the angular distributions were analyzed to determine the spins of astrophysically-relevant levels. The data and preliminary analysis will be presented.

Authors

  • Dan Bardayan

    • Notre Dame
    • University of Notre Dame
  • P.D. O'Malley

    • Notre Dame
  • K.A. Chipps

    • ORNL
  • M. Matos

    • ORNL
  • S.D. Pain

    • ORNL
  • W.A. Peters

    • ORNL
  • S.T. Pittman

    • ORNL
  • K. Schmitt

    • ORNL
  • M.S. Smith

    • ORNL
  • S. Ahn

    • U. Tenn.
  • K.L. Jones

    • U. Tenn.
  • A. Sachs

    • U. Tenn.
  • P. Thompson

    • U. Tenn.
  • A. Kontos

    • NSCL
  • H. Schatz

    • NSCL
  • R.L. Kozub

    • Tenn. Tech.
  • B. Manning

    • Rutgers
  • S. Ota

    • Rutgers
  • U. Greife

    • Col. School Mines
  • J.C. Blackmon

    • LSU
  • L. Linhardt

    • LSU