Polarization inppElastic Scattering at Large Momentum Transfers

Measurements of the polarization in $\mathrm{pp}$ elastic scattering have been made at 5.15 GeV/c over the range $-t=0.2\mathrm{} \mathrm{to} 1.8$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$. The data are compared with a Regge-pole model, and with the diffraction model of Durand and Lipes in which the absorptive part of the $\mathrm{pp}$ interaction is derived from the electromagnetic form factor of the proton. The latter model reproduces the $t$ dependence of the experimental data in a qualitative way.