Absolute differential cross-sections of p+ a2C elastic scattering have been measured at 0cm=89.1 ~ 118.7 ~ 146.9 ~ for bombarding energies between 0.3 and 2.0MeV. Revised level parameters of the first three excited states in ~3N have been extracted with a R-matrix analysis. It is shown that the influence of the bound ground-state of ~ 3N has an appreciable effect on low-energy scattering. Recent predictions concerning Mott-Schwinger polarization are also discussed.
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