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The 18O(p,alpha)15N reaction rate has been extracted by means of theTrojan-Horse method. For the first time the contribution of the 20-keV peak hasbeen directly evaluated, giving a value about 35% larger than previouslyestimated. The present approach has allowed to improve the accuracy of a factor8.5, as it is based on the measured strength instead of educated guesses orspectroscopic measurements. The contribution of the 90-keV resonance has beendetermined as well, which turned out to be of negligible importance toastrophysics.

New High-Precision Measurement of the Reaction Rate of the 18O(p,alpha)15N Reaction via THM