Phys.Rev. C 107, 035809 (2023)

F.Portillo, R.Longland, A.L.Cooper, S.Hunt, A.M.Laird, C.Marshall, K.Setoodehnia

Spin-parities of subthreshold resonances in the ¹⁸F(p, α)¹⁵O reaction

NUCLEAR REACTIONS ²⁰Ne(³He, α)¹⁹Ne, E=21 MeV; measured reaction products, Eα, Iα, α(θ); deduced exclusive σ(θ) for excited states of ¹⁹Ne, resonances, resonance widths. ¹⁹Ne; deduced levels, J, π. ¹⁸F(p, α)¹⁵O, E<1900 keV; deduced astrophysical S factor using obtained information on ¹⁹Ne excited states corresponding to ¹⁸F+p resonances, reaction rates. R-matrix analysis. Comparison to other experimental data. Enge split-pole magnetic spectrograph at 10 MV FN Tandem Van de Graaff accelerator (TUNL).

doi: 10.1103/PhysRevC.107.035809