Small-Momentum-Transferp−pInelastic Scattering at 300 GeV/c

Abstract

We have performed an experiment on $p-p$ inelastic scattering at National Accelerator Laboratory to study the reaction $p+p\to p+X$. We cover the range in $\mathrm{}\left|t\right|\mathrm{}$ from 0.019 to 0.17 ${(\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c})}^2$ by measuring the low-energy recoiling protons. The range in $M_X^{}{}_{}{}^2$ measured is from 0 to 60 Ge${\mathrm{V}}^2$. The "diffractive" cross section is determined to be in the range $3.2<\mathrm{}\sigma <4.7\mathrm{}$ mb. Unexpected behavior is observed at low $\mathrm{}\left|t\right|\mathrm{}$ for $8<\mathrm{}M_X^{}{}_{}{}^2<14\mathrm{}$ Ge${\mathrm{V}}^2$.