201-GeV/<i>c</i>Proton-Proton Elastic Scattering at Large Momentum Transfer

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