Alpha-decay branching ratios of near-threshold states in <sup>19</sup>Ne and the astrophysical rate of <sup>15</sup> O(α, γ )<sup>19</sup>Ne
- Davids, B.
- van den Berg, A. M.
- Dendooven, P.
- Fleurot, F.
- Hunyadi, M.
- de Huu, M. A.
- Rehm, K. E.
- Segel, R. E.
- Siemssen, R. H.
- Wilschut, H. W.
- Wörtche, H. J.
- Wuosmaa, A. H.
DOIAbstract
The 15O(α,γ)19Ne reaction is one of two routes for breakout from the hot CNO cycles into the rp process in accreting neutron stars. Its astrophysical rate depends critically on the decay properties of excited states in 19Ne lying just above the 15O + α threshold. We have measured the α-decay branching ratios for these states using the p(21lNe,t)19Ne reaction at 43 MeV/u.</p
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