Couch, R. G. and Spinka, H. and Tombrello, T. A. and Weaver, T. A. (1972) The Rate of the ^(14)N(ɑ,γ)^(18)F Reaction. Astrophysical Journal, 172 . pp. 395-401. ISSN 0004-637X. doi:10.1086/151359. https://resolver.caltech.edu/CaltechAUTHORS:20150211-100921687
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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.
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| 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. | |||||||||
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| DOI: | 10.1086/151359 | |||||||||
| Record Number: | CaltechAUTHORS:20150211-100921687 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150211-100921687 | |||||||||
| Official Citation: | The Rate of the ^(14)N(ɑ,y)^(18)F Reaction. Couch, R. G.; Spinka, H.; Tombrello, T. A.; Weaver, T. A. Astrophysical Journal, vol. 172, p.395-401 03/1972 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 54711 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 11 Feb 2015 18:55 | |||||||||
| Last Modified: | 10 Nov 2021 20:37 |
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