Astrophysical rate of 15O(α,γ)19Ne via the (p,t) reaction in inverse kinematics

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

Research output: Contribution to journalArticle

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Abstract

A recoil coincidence technique has been applied to measure the α-decay branching ratios of near-threshold states in 19Ne. Populating these states using the (p,t) reaction in inverse kinematics, we detected the recoils and their decay products with 100% geometric efficiency using a magnetic spectrometer. Combining our branching ratio measurements with independent determinations of the radiative widths of these states, we calculate the astrophysical rate of 15O(α, γ) 19Ne. Using this reaction rate, we perform hydrodynamic calculations of nova outbursts and conclude that no significant breakout from the hot CNO cycles into the rp process occurs in novae via 15O(α, γ)19Ne.

Original languageEnglish
Article number065808
Pages (from-to)658081-658088
Number of pages8
JournalPhysical Review C - Nuclear Physics
Volume67
Issue number6
Publication statusPublished - Jun 2003

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inverse kinematics
astrophysics
novae
decay
reaction kinetics
hydrodynamics
spectrometers
cycles
thresholds
products

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

Cite this

Davids, B., Van den Berg, A. M., Dendooven, P., Fleurot, F., Hunyadi, M., De Huu, M. A., ... Segel, R. E. (2003). Astrophysical rate of 15O(α,γ)19Ne via the (p,t) reaction in inverse kinematics. Physical Review C - Nuclear Physics, 67(6), 658081-658088. [065808].

Astrophysical rate of 15O(α,γ)19Ne via the (p,t) reaction in inverse kinematics. / Davids, B.; Van den Berg, A. M.; Dendooven, P.; Fleurot, F.; Hunyadi, M.; De Huu, M. A.; Siemssen, R. H.; Wilschut, H. W.; Wörtche, H. J.; Hernanz, M.; José, J.; Rehm, K. E.; Wuosmaa, A. H.; Segel, R. E.

In: Physical Review C - Nuclear Physics, Vol. 67, No. 6, 065808, 06.2003, p. 658081-658088.

Research output: Contribution to journalArticle

Davids, B, Van den Berg, AM, Dendooven, P, Fleurot, F, Hunyadi, M, De Huu, MA, Siemssen, RH, Wilschut, HW, Wörtche, HJ, Hernanz, M, José, J, Rehm, KE, Wuosmaa, AH & Segel, RE 2003, 'Astrophysical rate of 15O(α,γ)19Ne via the (p,t) reaction in inverse kinematics', Physical Review C - Nuclear Physics, vol. 67, no. 6, 065808, pp. 658081-658088.
Davids B, Van den Berg AM, Dendooven P, Fleurot F, Hunyadi M, De Huu MA et al. Astrophysical rate of 15O(α,γ)19Ne via the (p,t) reaction in inverse kinematics. Physical Review C - Nuclear Physics. 2003 Jun;67(6):658081-658088. 065808.
Davids, B. ; Van den Berg, A. M. ; Dendooven, P. ; Fleurot, F. ; Hunyadi, M. ; De Huu, M. A. ; Siemssen, R. H. ; Wilschut, H. W. ; Wörtche, H. J. ; Hernanz, M. ; José, J. ; Rehm, K. E. ; Wuosmaa, A. H. ; Segel, R. E. / Astrophysical rate of 15O(α,γ)19Ne via the (p,t) reaction in inverse kinematics. In: Physical Review C - Nuclear Physics. 2003 ; Vol. 67, No. 6. pp. 658081-658088.
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