Pion Diffraction Dissociation in 205-GeV/cπ−pInteractions

Abstract

Pion diffraction dissociation into masses up to approximately 6 GeV is observed in the reaction ${\pi }^{-}+p\to p+X$ at 205 GeV/c. The pion single-diffraction cross section for mass squared ≤ 32 Ge${\mathrm{V}}^2$ is 1.9 ± 0.2 mb.