Investigation of the $14O(α,p)17F$ stellar reaction via resonant elastic scattering of $17F+p$

Resonant properties in $18Ne$ relevant to the stellar reaction of $14O(α,p)17F$ have been investigated through a resonant elastic scattering of $17F+p$⁠. The $17F$ RI beam was produced via a projectile-fragmentation reaction, and subsequently separated and purified by a Radioactive Ion beam Line in Lanzhou (RIBLL). After a series of energy degradation, a 4.21 AMeV $17F$ beam bombarded a thick $(CH2)n$ target at T2 terminal. Energy and angle of the recoiled protons were measured by two sets of ΔE-E silicon telescope at θ_lab ≈ 0°, 14° respectively. Several resonances in $18Ne$ were observed, and their resonant parameters including energy, spin-parity and decay width have been determined by an R-Matrix analysis of the experimental excitation function.