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Measurement of the 20 and 90keV Resonances in the O18(p,α)N15 Reaction via the Trojan Horse Method

M. La Cognata C. Spitaleri A. M. Mukhamedzhanov B. Irgaziev R. E. Tribble A. Banu S. Cherubini A. Coc 1 V. Crucillà V. Z. Goldberg M. Gulino G. G. Kiss L. Lamia J. Mrazek R. G. Pizzone S. M. R. Puglia G. G. Rapisarda S. Romano M. L. Sergi G. Tabacaru L. Trache W. Trzaska A. Tumino
1 CSNSM AN
CSNSM - Centre de Sciences Nucléaires et de Sciences de la Matière, CSNSM - Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse
Abstract : The O18(p,α)N15 reaction is of primary importance in several astrophysical scenarios, including fluorine nucleosynthesis inside asymptotic giant branch stars as well as oxygen and nitrogen isotopic ratios in meteorite grains. Thus the indirect measurement of the low energy region of the O18(p,α)N15 reaction has been performed to reduce the nuclear uncertainty on theoretical predictions. In particular the strength of the 20 and 90 keV resonances has been deduced and the change in the reaction rate evaluated.
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Submitted on : Monday, August 26, 2013 - 12:12:47 PM
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M. La Cognata, C. Spitaleri, A. M. Mukhamedzhanov, B. Irgaziev, R. E. Tribble, et al.. Measurement of the 20 and 90keV Resonances in the O18(p,α)N15 Reaction via the Trojan Horse Method. Physical Review Letters, American Physical Society, 2008, 101, pp.152501. ⟨10.1103/PHYSREVLETT.101.152501⟩. ⟨in2p3-00854116⟩

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