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[beta]-delayed [alpha] spectrum of [sup 16]N and the [sup 12]C([alpha],[gamma])[sup 16]O cross section at low energies

Journal Article · · Physical Review Letters; (United States)
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  1. TRIUMF, Vancouver, British Columbia, V6T2A3 (Canada) University of Toronto, Toronto, Ontario, M5S1A7 (Canada) California Insitute of Technology, W. K. Kellogg Laboratory, Pasadena, California 91125 (United States) Simon Fraser University, Burnaby, British Columbia, V5A1S6 (Canada) University of Alberta, Edmonton, Alberta, T6G2J1 (Canada)
The [alpha] spectrum following the [beta] decay of [sup 16]N from the isotope separator TISOL has been measured by detecting 10[sup 6] [alpha] particles in coincidence with [sup 12]C nuclei. These data, which show a low-energy interference anomaly accompanying the main [alpha] peak, permit a more precise determination of the [ital p]-wave amplitude of the astrophysically important reaction [sup 12]C([alpha],[gamma])[sup 16]O. The [alpha] spectrum and previous [gamma]-ray data have been fitted simultaneously by a [ital K]-matrix parametrization; a value of [ital S]([ital E]=0.3 MeV)=57[plus minus]13 keV [ital b] has been obtained for the [ital E]1 part of the [sup 12]C([alpha],[gamma])[sup 16]O reaction.
OSTI ID:
7176706
Journal Information:
Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 70:6; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
English