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The O-14(alpha,p)F-17 reaction rate

Title
The O-14(alpha,p)F-17 reaction rate
Authors
Blackmon, JCBardayan, DWBradfield-Smith, WBrummitt, RChampagne, AEChen, AADavinson, TDessieux, LGuidry, MWHahn, KIHale, GMHix, WRKozub, RLMa, ZParker, PDRajbaidya, GRunkle, RCRowland, CMShotter, ACSmith, MSVan Wormer, LAVisser, DWWoods, PJ
Ewha Authors
한인식
SCOPUS Author ID
한인식scopus
Issue Date
2003
Journal Title
NUCLEAR PHYSICS A
ISSN
0375-9474JCR Link
Citation
vol. 718, pp. 127C - 130C
Publisher
ELSEVIER SCIENCE BV
Indexed
SCI; SCIE; SCOPUS WOS
Abstract
The O-14(alpha,p)F-17 reaction is an important part of the hot CNO cycle. We have measured cross sections for the F-17(pp)F-17(gs), F-17(p,p(1))F-17(495)*, and F-17(p,alpha)O-14 reactions in inverse kinematics using radioactive F-17 beams from the Holifield Radioactive Ion Beam Facility. The properties of states in Ne-18, including those important for the O-14(alpha,p)F-17 reaction rate, were determined from an R-matrix analysis of the measured cross sections. An improved O-14(alpha,p)F-17 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-12 and N-13 in succession lead to the production of O-14. Destruction of O-14 occurs by O-14(beta(+))N-14 and by the O-14 (alpha,p)F-17 reaction. The slow rate of this reaction can limit energy generation and result in substantial abundances of the O-14 isotope in novae [1] and X-ray bursts [2].
DOI
10.1016/S0375-9747(03)00689-4
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사범대학 > 과학교육과 > Journal papers
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