The elastic scattering of deuterons by ${\mathrm{N}}^{14}$ has been investigated for incident energies from 1.8 to 5.5 MeV. Excitation curves were measured at 90.0°, 125.3°, 140.8°, and 166.6° (c.m.), and all but the 90° curve showed broad fluctuations. Peaks which appeared at more than one angle were considered to be resonances, and energy levels in ${\mathrm{O}}^{16}$ were determined from them. Angular distributions from 18° to 166° (c.m.) were measured in 500-keV steps from 2 to 5.5 MeV, and optical-model analyses of these data were made both with volume absorption and with surface absorption. The surface-absorption calculations were best, and one such set of parameters was found which gave reasonable fits for the angular distributions at all energies. An optical-potential ambiguity appeared in the analysis of these data. The total reaction cross section at 3 MeV was found to be 947 mb±20% experimentally, and this value was compared with the theoretical value of 921 mb determined from the parameters referred to above.

• Received 27 March 1967

DOI:https://doi.org/10.1103/PhysRev.161.1082