Abstract:
Angular distributions of the analyzing power Ay have been measured for neutron elastic scattering and for neutron inelastic scattering to the first 21+ states of 54,56Fe and Ni58.60 at 10 MeV, and for Fe54 and Ni58 at 14 and 17 MeV. The differential cross sections for the same processes were measured at 17 MeV for Fe54 and Ni58. These measurements have been combined with other measurements of and Ay and also with total cross sections to form a sizable data set for incident neutron energies up to 80 MeV. This data set has been described in the context of the coupled channels formalism to determine the energy dependences of the various terms of the deformed optical potential. Some emphasis was placed on investigating the magnitude of the deformation parameter so of the neutron spin-orbit potential and the possibility that it might be energy dependent. © 1988 The American Physical Society.
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