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Kinematically complete measurement of the 1H(18F,p)18F excitation function for the astrophysically important 7.08-MeV state in 19Ne
- Authors
- Bardayan, D.W.; Blackmon, J.C.; Bradfield-Smith, W.; Brune, C.R.; Champagne, A.E.; Davinson, T.; Johnson, B.A.; Kozub, R.L.; Lee, C.S.; Lewis, R.; Parker, P.D.; Shorter, A.C.; Smith, M.S.; Visser, D.W.; Woods, P.J.
- Issue Date
- Oct-2000
- Publisher
- American Physical Society
- Citation
- Physical Review C - Nuclear Physics, v.62, no.4, pp 428021 - 428024
- Pages
- 4
- Journal Title
- Physical Review C - Nuclear Physics
- Volume
- 62
- Number
- 4
- Start Page
- 428021
- End Page
- 428024
- ISSN
- 0556-2813
1089-490X
- Abstract
- Knowledge of the astrophysical 18F(p,α)15O rate is important for understanding gamma-ray emission from novae and heavy-element production in x-ray bursts. A state with Ex≃7.08 MeV in 19Ne provides an s-wave resonance and, depending on its properties, could dominate the 18F(p,α)15O rate. By measuring a kinematically complete 1H(18F,p)18F excitation function with a radioactive 18F beam at the ORNL Holifield Radioactive Ion Beam Facility, we find that the 19Ne state lies at a center-of-mass energy of 665.3±1.7 keV (Ex =7077±2 keV), has a total width of 38.5±3.4 keV, and a proton partial-width of 15.8±1.6 keV.
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Collections - College of Natural Sciences > Department of Physics > 1. Journal Articles
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