Polarization inp−pelastic scattering at large four-momentum transfers

New results are presented from the continuation of an experiment designed to study the polarization in elastic $p-p$ scattering at large four-momentum transfers. A high-intensity unpolarized proton beam of momentum 12.3 GeV/c was incident on a propanediol polarized proton target and both final-state protons were detected and momentum-analyzed in multiwire proportional chamber spectrometers. The measurements spanned the $t$ range $1.5<\mathrm{}\left|t\right|<6.2\mathrm{}$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$. The results are discussed in the framework of optical, exchange, and parton models.