Large Momentum Transfer Elastic Scattering of pi+-, K+-, and rho+- on Protons at 100-GeV/c and 200-GeV/c

Results are presented on ${\ensuremath{\pi}}^{\ifmmode\pm\else\textpm\fi{}}p$, ${K}^{\ifmmode\pm\else\textpm\fi{}}p$, and ${p}^{\ifmmode\pm\else\textpm\fi{}}p$ elastic scattering measured with an apparatus having acceptance of $0.5l\ensuremath{-}tl2.5$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$ and $0.9l\ensuremath{-}tl11$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$ at 100 and 200 GeV/c, respectively. A diffractionlike dip is seen for the first time in the ${\ensuremath{\pi}}^{\ensuremath{-}}p t$ distribution at $\ensuremath{-}t=4$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$. All meson-proton cross sections are found to be similar in the range $1l\ensuremath{-}tl2.5$ ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^{2}$, although some small systematic differences are observed. Cross sections for $\mathrm{pp}$ and $\stackrel{-}{p}p$ are compared with previous data.