Kinematically complete measurement of the 1H(18F,p)18F excitation function for the astrophysically important 7.08-MeV state in 19Ne
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.
Publication Source (Journal or Book title)
Physical Review C - Nuclear Physics
Bardayan, D., Blackmon, J., Bradfield-Smith, W., Brune, C., Champagne, A., Davinson, T., Johnson, B., Kozub, R., Lee, C., Lewis, R., Parker, P., Shorter, A., Smith, M., Visser, D., & Woods, P. (2000). Kinematically complete measurement of the 1H(18F,p)18F excitation function for the astrophysically important 7.08-MeV state in 19Ne. Physical Review C - Nuclear Physics, 62 (4), 428021-428024. Retrieved from https://digitalcommons.lsu.edu/physics_astronomy_pubs/371