Single-Particle Distributions ofπMesons Produced inK−pInteractions at 9GeVc

Abstract

We present distributions of transverse momentum squared and of longitudinal momentum in the laboratory, center-of-mass, and projectile frames for pions produced in $K^{-}p$ interactions at 9 $\frac{\mathrm{GeV}}{c}$. Comparisons made with the corresponding distributions published by other laboratories for pion production in $K^{+}p$, ${\pi }^{+}p$, $\mathrm{pp}$, and ${\pi }^{-}p$ interactions indicate that in the proton fragmentation region the distributions for pions produced from $K^{-}p$ interactions at 9 $\frac{\mathrm{GeV}}{c}$ have not yet reached a limiting behavior.