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

Research output: Contribution to journalArticle

  • A M Laird
  • S Cherubini
  • A N Ostrowski
  • 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 Tumino
  • J Vervier

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

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.

    Research areas

  • CNO

ID: 1370549