Study of Inelastic $$\boldsymbol{A}$$ ( $$\boldsymbol{p,p^{\prime}}$$ ) $$\boldsymbol{X}$$ Reaction with $${}^{\mathbf{9}}$$ Be and $${}^{\mathbf{90}}$$ Zr Nuclei at 1 GeV

The secondary proton polarization and differential cross sections of the ( $$p,p^{\prime}$$ ) inelastic reaction on nuclei $${}^{9}$$ Be and $${}^{90}$$ Zr at the initial proton energy of 1 GeV were measured over a wide range of the scattered proton momenta at a laboratory angle of $$\Theta=21^{\circ}$$ . Scattered protons were detected by means of the magnetic spectrometer equipped with a polarimeter based on multiwire proportional chambers and carbon analyzer. A structure in the polarization and cross section data, related probably to the quasielastic scattering off nucleon correlations in the $${}^{9}$$ Be and $${}^{90}$$ Zr nuclei, was observed as earlier in the same data for the $${}^{12}$$ C, $${}^{28}$$ Si, $${}^{40}$$ Ca and $${}^{56}$$ Fe nuclei. A difference in the momentum distributions of the scattering cross section ratios for the $${}^{90}$$ Zr and $${}^{12}$$ C nuclei and for the $${}^{90}$$ Zr and $${}^{9}$$ Be nuclei was observed.