Study of the ^3He(^14O,α)^13O reaction

Details Study of the ^3He(^14O,α)^13O reaction Study of the ^3He(^14O,α)^13O reaction

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aps..dnp.bg004m&link_type=abstract

American Physical Society, 2007 Annual Meeting of the Division of Nuclear Physics, October 10-13,2007, abstract #BG.004

Physics

Nuclear Physics

Scientific paper

We have studied the structure of ^13O through the ^3He(^14O,α)^13O reaction. Recent work examining the resonance elastic scattering of p + ^12N has provided information on the excited states of ^13O up to 4 MeV (B.B. Skorodumov et al., Phys. Rev. C 75, 024607 (2007)). Little is known about the excited states of this isotope at excitation energies above 6.02 MeV. Due to a low separation energy (Sp = 1.516 MeV) the most likely populated states are 1p and 2p unbound. States in ^13O above the alpha-particle decay threshold may also have astrophysical significance, and may influence the rate of the ^9C(,)^12N reaction in dense, low metallicity stars. The ATLAS in-flight radioactive beam facility at Argonne National Laboratory produced an ^14O beam of 10^5 particles per second at 148 MeV. The beam bombarded a cryogenic ^3He target cell. Three annular segmented Si detectors detected light reaction products between θlab=8 and 48 degrees. Heavy beam-like fragments were identified using a four segment Si E-δE telescope covering laboratory angles between 1.4 and 7 degrees. Preliminary results will be discussed. Work supported by the U. S. Department of Energy, Office of Nuclear Physics under contracts DE-FG02-04ER41320 (WMU) and DE-AC02-06CH11357 (ANL).

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