201-GeV/cProton-Proton Elastic Scattering at Large Momentum Transfer

Proton-proton elastic scattering has been measured in the region $4.9<\mathrm{}\left|t\right|<12.1\mathrm{}$ ${\mathrm{GeV}}^2$ at a beam momentum of 201 GeV/c. If the form $\exp \mathrm{}\left(\mathrm{At}\right)\mathrm{}$ is fitted to the data, the exponent $A$ gradually changes from 1.5 to 0.9 ${\mathrm{GeV}}^{-2\mathrm{}}$ over our $t$ range. The data are consistent with the form $\exp (-6.6\mathrm{}{p}_{\perp })$. A comparison with intersecting storage ring results shows that in this kinematical region the slopes are about the same, but $\frac{d\sigma }{\mathrm{dt}}$ at fixed $t$ is still dropping with energy.