Study of Inelastic A(p, p′)X Reaction with Nuclei at 1 GeV

Abstract

The secondary-proton polarization and differential cross sections for the (p, p') inelastic reaction on ²⁸Si and ⁵⁶Fe nuclei at the initial proton energy of 1 GeV were measured over a wide range of the scattered-proton momenta at a laboratory angle of Θ = 21◦. Scattered protons were detected by means of a magnetic spectrometer equipped with a polarimeter based on multiwire proportional chambers and a carbon analyzer. A structure in the polarization and cross section data, which is probably related to quasielastic scattering off nucleon correlations in the ²⁸Si and ⁵⁶Fe nuclei, was observed as earlier in the analogous data for ¹²C and ⁴⁰Ca nuclei. Momentum intervals within which cross-section ratios for nuclei did not depend on the scattered-proton momentum were found.