Evaluation of neutron data for oxygen in the 0-2,5 MeV energy range

Estimated are cross sections and cross section angular momenta of neutron elastic scattering by oxygen in the energy range from 0 to 2.5 MeV. The multilevel single-channel approximation of the collision matrix has been used. The negative level neutron width has been selected, so as to provide the optimum description of experimental data. The figures give the energy dependences of the total cross section and the first and the second momenta of the neutron elastic scattering cross sections. The results of theoretical calculations agree with the experimental data, in the energy range, where the cross section resonance structure manifests itself most clearly