Edinburgh Research Explorer

The O(α,p)F reaction rate

Research output: Contribution to journalArticle

  • J.C. Blackmon
  • D.W. Bardayan
  • W. Bradfield-Smith
  • R. Brummitt
  • A.E. Champagne
  • A.A. Chen
  • L. Dessieux
  • M.W. Guidry
  • K.I. Hahn
  • G.M. Hale
  • W.R. Hix
  • R.L. Kozub
  • Z. Ma
  • P.D. Parker
  • G. Rajbaidya
  • R.C. Runkle
  • C.M. Rowland
  • M.S. Smith
  • L.A. Van Wormer
  • D.W. Visser

Related Edinburgh Organisations

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

Abstract

The O(α,p)F reaction is an important part of the hot CNO cycle. We have measured cross sections for the F(p,p)F, F(p,p)F*, and F(p,α)O reactions in inverse kinematics using radioactive F beams from the Holifield Radioactive Ion Beam Facility. The properties of states in Ne, including those important for the O(α,p F reaction rate, were determined from an R-matrix analysis of the measured cross sections. An improved O(α,p F reaction rate has been determined. The hot CNO cycle of reactions is important in explosive astrophysical environments such as novae and X-ray bursts. In this cycle, proton captures by C and N in succession lead to the production of O. Destruction of O occurs by O(β)N and by the O(α,p)F reaction. The slow rate of this reaction can limit energy generation and result in substantial abundances of the O isotope in novae [1] and X-ray bursts [2].

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