Fluctuations in inelastic proton scattering from58Ni in the energy range 17.1 to 20.6 MeV

Abstract

Excitation functions of proton elastic and inelastic scattering on 58Ni have been measured for proton energies in the range 17.1 to 20.6 MeV, at laboratory angles of 90 ~ 120 ~ and 155 ~ . All show cross section fluctuations. Excitation functions are presented for the elastic and for five inelastic groups in the energy range 18.1 to 18.59 MeV. These were analyzed by the Fourier analysis method, and the average level width found to be about 13 keV. The observation of strong fluctuations in the higher inelastic yields has implications for several microscopic analyses reported in the literature of