Abstract
The paper analyzes the results of experiments on inelastic scattering of polarized protons on \({}^{54,56}\) Fe nuclei. The work presents for the first time the differential cross sections and analyzing power for levels \(2_{1}^{+}\) , \(2_{2}^{+}\) , \(4_{1}^{+}\) , \(4_{2}^{+}\) for the scattering of protons with an energy of 16 MeV. The published data for the same levels, but for proton energies of 18.6 and 400 MeV are also analyzed. Calculations of inelastic scattering observables were performed using the coupled channel method for a proton energy of 16 and 18.6 MeV and the distorted wave method for a proton energy of 400 MeV. The predictions of two collective models of excited states of the nucleus were compared: the asymmetric rotor model and the multiphonon vibrational model. In addition, the wave functions of excited states calculated using the shell model were tested.