Observation of a polarization structure in the 40 Ca( p , p ')X reaction at 1 GeV

The polarization of the secondary protons in the inelastic ( p , p ') reaction on the 40 Ca nucleus at the initial proton energy 1 GeV was measured in a wide range of the scattered proton momenta at a laboratory angle Θ = 21°. The final protons from the reaction have been detected using the magnetic spectrometer equipped with multiwire-proportional chambers polarimeter. A structure of the polarization data, related probably to scattering off the nucleon correlations in the nucleus, has been observed.