Alpha-decay branching ratios of near-threshold states in 19Ne and the astrophysical rate of 15 O(α, γ )19Ne

B. Davids, A. M. van den Berg, P. Dendooven, F. Fleurot, M. Hunyadi, M. A. de Huu, K. E. Rehm, R. E. Segel, R. H. Siemssen, H. W. Wilschut, H. J. Wörtche, A. H. Wuosmaa

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Abstract

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.

Original languageEnglish
JournalNuclear Physics A
Volume723
Issue number1-2
DOIs
Publication statusPublished - Jul 28 2003

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alpha decay
astrophysics
thresholds
decay
neutron stars
routes
cycles
excitation

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Alpha-decay branching ratios of near-threshold states in 19Ne and the astrophysical rate of 15 O(α, γ )19Ne. / 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.

In: Nuclear Physics A, Vol. 723, No. 1-2, 28.07.2003.

Research output: Contribution to journalArticle

Davids, B, van den Berg, AM, Dendooven, P, Fleurot, F, Hunyadi, M, de Huu, MA, Rehm, KE, Segel, RE, Siemssen, RH, Wilschut, HW, Wörtche, HJ & Wuosmaa, AH 2003, 'Alpha-decay branching ratios of near-threshold states in 19Ne and the astrophysical rate of 15 O(α, γ )19Ne', Nuclear Physics A, vol. 723, no. 1-2. https://doi.org/10.1016/S0375-9474(03)00899-6
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. / Alpha-decay branching ratios of near-threshold states in 19Ne and the astrophysical rate of 15 O(α, γ )19Ne. In: Nuclear Physics A. 2003 ; Vol. 723, No. 1-2.
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AU - Rehm, K. E.

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