Kinematically complete measurement of the [Formula Presented] excitation function for the astrophysically important 7.08-MeV state in [Formula Presented]

D. W. Bardayan, ORNL Physics Division
J. C. Blackmon, ORNL Physics Division
W. Bradfield-Smith, Yale University
C. R. Brune, The University of North Carolina at Chapel Hill
A. E. Champagne, The University of North Carolina at Chapel Hill
T. Davinson, The University of Edinburgh
B. A. Johnson, Tennessee Technological University
R. L. Kozub, Tennessee Technological University
C. S. Lee, Chung-Ang University
R. Lewis, Yale University
P. D. Parker, Yale University
A. C. Shotter, The University of Edinburgh
M. S. Smith, ORNL Physics Division
D. W. Visser, Yale University
P. J. Woods, The University of Edinburgh


Knowledge of the astrophysical [Formula Presented] rate is important for understanding gamma-ray emission from novae and heavy-element production in x-ray bursts. A state with [Formula Presented] in [Formula Presented] provides an s-wave resonance and, depending on its properties, could dominate the [Formula Presented] rate. By measuring a kinematically complete [Formula Presented] excitation function with a radioactive [Formula Presented] beam at the ORNL Holifield Radioactive Ion Beam Facility, we find that the [Formula Presented] state lies at a center-of-mass energy of [Formula Presented] has a total width of [Formula Presented] and a proton partial-width of [Formula Presented]. © 2000 The American Physical Society.