Observation of a Crossover in the Differential Cross Sections forQ-Meson Production

Abstract

A crossover is observed in the differential cross sections for the inelastic processes $K^{0}p\to Q^{0}p$ and ${\overline{K}}^{0}p\to {\overline{Q}}^{0}p$, from ${K_L}^{0}p$ data in the momentum range from 4 to 12 GeV/c. This phenomenon is evidence that Regge, in addition to Pomeranchukon, exchanges contribute to $Q$-meson production.