Physics – Nuclear Physics
Scientific paper
Oct 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aps..dnp.be010r&link_type=abstract
American Physical Society, 2007 Annual Meeting of the Division of Nuclear Physics, October 10-13,2007, abstract #BE.010
Physics
Nuclear Physics
Scientific paper
A measurement of the β-delayed α decay of ^16N can give information about the E1 component of the astrophysical S-factor of the ^12C(α,γ)^16O reaction. The uncertainty in this measurement depends on many parameters, which are used in the fitting procedure. One of them is the ratio of the β decay in ^16N, populating the sub-threshold 1^- state in ^16O. We have performed a new measurement of this branching ratio using Gammasphere. The ^16N particles were produced by bombarding a deuterium target with a ^15N beam from the ATLAS accelerator at Argonne. From this experiment a new branching ratio has been obtained, which is about 10% higher than the previous value. The implication of this new value on the S(E1) factor will be discussed. This work was supported in part by the U.S. Department of Energy, Office of Nuclear Physics, under Contract No. DE-AC02-06CH11357 and by the NSF Grant No. PHY-02-16783 (Joint Institute for Nuclear Astrophysics).
Carpenter Michael
Ernst Rehm K.
Greene John P.
Janssens R. V. F.
Jiang C. L.
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