Indirect measurement of the 18O(p, α)15N reaction rate through the THM

A preliminary indirect investigation of the 18O(p, α)15N reaction via the THM is discussed, focusing on the extraction of the resonance parameters of the 656 keV resonance (corresponding to the state at Ex = 8.65 MeV in 19F), which gives strong contribution both at low and high temperatures, being quite broad. Even though a non-negligible discrepancy is found, both as regards the strength and the energy of the resonance, no change in the reaction rate is apparent in the astrophysically relevant temperature range.