Production of Kaons, Protons, and Antiprotons with Large Transverse Momentum in p−p and p−d Collisions at 200, 300, and 400 GeV

The ratios of ${K}^{+}$, ${K}^{\ensuremath{-}}$, $p$, and $\overline{p}$ yields to pion yields at transverse momenta (${p}_{\ensuremath{\perp}}$) ranging from 0.77 to 6.91 GeV/c arepresented for 200-, 300-, and 400-GeV $p\ensuremath{-}p$ and 400-GeV $p\ensuremath{-}d$ collisions. The dependences of the particle ratios on ${p}_{\ensuremath{\perp}}$ and the scaling variable ${x}_{\ensuremath{\perp}}=\frac{2{p}_{\ensuremath{\perp}}}{\sqrt{s}}$ are discussed.