January 2017

Journal

The First Science Result with the JENSA Gas-Jet Target: Confirmation and Study of a Strong Subthreshold 18F(p,α)15 Resonance

By:
Bardayan, D.; Chipps, K.; Ahn, S.; Blackmon, J.; DeBoer, J.; Greife, U.; Jones, K.; Kontos, A.; Kozub, R.; Linhardt, L.; Manning, B.; Matos, M.; O'malley, P.; Ota, S.; Pain, S.; Peters, W.; Pittman, S.; Sachs, A.; Schmitt, K.; Smith, M.; Thompson, P.
Journal Name:
Physics Letters B
Page Number:
311-315
Volume:
751
Issue Number:
N/A
Publication Date:
January 27, 2017
View DOI Listing:
https://doi.org/10.1016/j.physletb.2015.10.073

Abstract

The astrophysical F-18(p, alpha)O-15 rate determines, in large part, the extent to which the observable radioisotope F-18 is produced in novae. This rate, however, has been extremely uncertain owing to the unknown properties of a strong subthreshold resonance and its possible interference with higher-lying resonances. The new Jet Experiments in Nuclear Structure and Astrophysics (JENSA) gas-jet target has been used for the first time to determine the spin of this important resonance and significantly reduce uncertainties in the F-18(p, alpha)O-15 rate. (C) 2015 The Authors. Published by Elsevier B.V.