Abstract

The O 16(d, n)F 17 g.s. reaction has been investigated in the energy range from threshold (1.83 MeV) to 2.4 MeV. The deutron beam was produced by the S. Paulo Electrostatic Accelerator; the neutrons were detected by a long counter. Yield curves were obtained at 3 angles and angular distributions at 7 energies. The angular distributions are isotropic near threshold but become quite anisotropic at higher energies; they are not symmetric about 90° and are suggestive of a direct reaction mechanism. An attempt was made to explain the experimental results by stripping theory, taking the distortion of the deuteron wave by the Coulomb field into account. At low energies the calculation yields results in agreement with experiment, but at higher energies a large discrepancy exists. This disagreement appears to be related to the existence of resonances in the yield curve at the higher energies.

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