Published March 1, 1972
| Published
Journal Article
Open
The Rate of the ^(14)N(ɑ,γ)^(18)F Reaction
Chicago
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Abstract
New experimental and theoretical results are presented on the 14N(ɑ,γ)^(18)F reaction. A new resonance has been found at E_ɑ = 0.56 MeV with (2J + l)ΓɑΓγ/Γ = 2.8 ± 0.5 X 10^(-4) eV (lab). From a theoretical calculation of the cross-section for direct radiative capture, and an extrapolation of the tails of the measured resonances to E_ɑ = 0.0, a value S ≈ 0.7 MeV-barns is estimated for the nonresonant S-factor. The reaction rate is calculated, and the significance of this rate is discussed. It is found that in most stars ɑ-capture by ^(14)N takes place after the initiation of helium burning by the 3ɑ → ^(12)C reaction.
Additional Information
© 1972 American Astronomical Society. Provided by the NASA Astrophysics Data System. Received 1971 September 29. Supported in part by the National Science Foundation (GP-28027). We wish to express our gratitude to Dr. William A. Fowler and Dr. Charles A. Barnes for many helpful discussions, and to Barbara Zimmerman for her programming assistance.Attached Files
Published - 1972ApJ___172__395C.pdf
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Additional details
- Eprint ID
- 54711
- Resolver ID
- CaltechAUTHORS:20150211-100921687
- NSF
- GP-28027
- Created
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2015-02-11Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field