Excited States in ¹⁸Ne Studied via ¹⁷F+p *

The elastic resonance scattering of ¹⁷F+p is studied in inverse kinematics via a thick-target method. The excitation function for ¹⁷F+p elastic scattering is obtained within the energy interval of E_{c.m ^≈} 0.4-1.7 MeV. The experimental excitation function is analyzed with a multilevel R-matrix code MULTI7, and the proton widths are deduced. The α decay from 6.15 MeV 1^- state in ¹⁸Ne is observed, which is critical to the ¹⁴O(α, p)¹⁷F reaction as the main breakout route from CNO cycle to rp-process in supernovae and x-ray bursts.