ρ0production inπ−pinteractions at 100, 200, and 360 GeV/c

Inclusive and semi-inclusive cross sections for ${\mathrm{gp}}^0$ production in 100, 200, and 360 $\mathrm{G}\mathrm{e}\mathrm{V}/\mathit{c}$ ${\pi }^{-}p$ interactions are presented. Differential cross sections for ${\rho }^0$ production as functions of c.m. rapidity and transverse momentum are compared with the corresponding differential cross sections for pion production. Effects of various methods of estimating background on the values obtained for ${\rho }^0$ production cross sections are discussed. About 10% of the final-state charged pions appear to come from ${\rho }^0$ decay. Thus, while ${\rho }^0$ production and decay is a significant source of final-state pions, other sources must contribute the majority of the produced pions.