Measurement ofp+p→p+Xbetween 50 and 400 GeV

We have measured the s, t and x dependence of the invariant cross section for the inclusive reaction p + p ⇒ p + X in the region 108 < s < 752 GeV2, 0.14 < ∣ t ∣ < 0.38 GeV2 and 0.80 < x < 0.93. The data were taken during the acceleration ramp of the National Accelerator Laboratory machine using the internal H2 jet target facility.