Indirect study of the astrophysically important O-15(alpha,gamma)Ne-19 reaction through H-2(Ne-18,Ne-19)H-1

A M Laird, S Cherubini, A N Ostrowski, M Aliotta, T Davinson, A Di Pietro, P Figuera, W Galster, J S Graulich, D Groombridge, J Hinnefeld, M Lattuada, P Leleux, L Michel, A Musumarra, A Ninane, M G Pellegriti, A C Shotter, C Spitaleri, A TuminoJ Vervier, P Woods

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Abstract

The O-15(alpha,gamma)Ne-19 reaction is generally considered as a potential breakout reaction from the hot CNO cycle. Under nova conditions, the reaction rate is dominated by a single sub-Coulomb resonance at E-c.m.= 504 keV which corresponds to a Ne-19 excitation energy of E-R = 4.033 MeV. Results from a d(Ne-18,Ne-19)p experiment show that states of astrophysical interest are populated in this reaction. An upper limit for the alpha-branching ratio of the 4.033 MeV state was identified and branching ratios for other states in Ne-19 were found to be in good agreement with stable beam based results.

Original languageEnglish
Article number048801
Pages (from-to)-
Number of pages4
JournalPhysical Review C
Volume66
Issue number4
DOIs
Publication statusPublished - Oct 2002

Keywords

  • CNO

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