Comment on a Narrow Meson Resonance at 1932 MeV

Abstract

A number of characteristics of a narrow resonance observed in $\overline{p}p$ scattering can be explained by assuming that it is a nucleon-antinucleon system, rather than quark-antiquark. This object, together with similar states in other baryon-antibaryon channels, could be instrumental in the saturation of duality constraints. Relations between our proposal and models for $\psi$ and ${\psi }^{\prime }$ are discussed.