Measurement of the 20 and 90 keV resonances in the ${}^{18}\mathrm{O}(p,\alpha ){}^{15}$N reaction via THM

Abstract

The ${}^{18}\mathrm{O}(p,\alpha {)}^{15}\mathrm{N}$ reaction is of primary importance in several astrophysical scenarios, including fluorine nucleosynthesis inside AGB stars as well as oxygen and nitrogen isotopic ratios in meteorite grains. Thus the indirect measurement of the low energy region of the ${}^{18}\mathrm{O}(p,\alpha {)}^{15}\mathrm{N}$ reaction has been performed to reduce the nuclear uncertainty on theoretical predictions. In particular the strength of the 20 and 90 keV resonances have been deduced and the change in the reaction rate evaluated.

arXiv comment4 pages, 4 figures, submitted to PRL

References in corpus (3)

• Cool bottom processes on the thermally-pulsing AGB and the isotopic composition of circumstellar dust grains
• Reaction Rates Uncertainties and the Production of F19 in AGB Stars
• Trojan Horse as an indirect technique in nuclear astrophysics. Resonance reactions

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