The 17F(p,γ)18Ne Resonant Cross Section

We directly measure the 17F(p,γ)18Ne resonant reaction using a mixed beam of 17F and 17O at the Holifield Radioactive Ion Beam Facility at Oak Ridge National Laboratory (ORNL). The astrophysically important 3+ resonance at ∼600 keV above the proton threshold in 18Ne is found to have a partial width Γγ = 56 ± 24(stat) ± 30(sys) meV, in reasonable agreement with the theoretically predicted width. A 2σ upper limit on the direct capture of S(E) = 65 keV b is determined at an energy of 800 keV. Experimental techniques and astrophysical implications are discussed.