The 18F(p,a)15O reaction rate for application to nova gamma-ray emission

Details The 18F(p,a)15O reaction rate for application to nova gamma-ray emission The 18F(p,a)15O reaction rate for application to nova gamma-ray emission

2004-08-02

arxiv.org/abs/nucl-ex/0408001v1

Physics

Nuclear Physics

Nuclear Experiment

Contribution to the Eighth International Symposium on Nuclei in the Cosmos, Vancouver july 19-23. 4 pages and 2 figures

Scientific paper

10.1016/j.nuclphysa.2005.05.197

The 18F(p,a)15O reaction is recognized as one of the most important reaction for nova gamma-ray astronomy as it governs the early <= 511 keV emission. However, its rate remains largely uncertain at nova temperatures due to unknown low-energy resonance strengths. We report here on our last results concerning the study of the D(18F,pa)15N reaction, as well as on the determination of the 18F(p,a)15O reaction rate using the R-matrix theory. Remaining uncertainties are discussed.

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