19Ne levels studied with the 18F(d, n)19Ne*(18F+p) reaction

A good understanding of the level structure of Ne-19 around the proton threshold is critical to estimating the destruction of long-lived F-18 in novae. Here we report the properties of levels in Ne-19 in the excitation energy range of 6.9 <= E-x <= 8.4 MeV studied via the proton-transfer F-18(d, n)Ne* reaction at the Holifield Radioactive Ion Beam Facility. The populated Ne-19 levels decay by breakup into p + F-18 and alpha + O-15 particles. The results presented in this manuscript are those of levels that are simultaneously observed from the breakup into both channels. An s-wave state is observed at 1468 keV above the proton threshold, which is a potential candidate for a predicted broad J(pi) = 1/2(+) state. The proton and a partial widths are deduced to be Gamma(p) = 228 +/- 50 keV and Gamma(alpha) = 130 +/- 30 keV for this state.