Search for Photoproduction ofψ(3105)

Abstract

The product of the photoproduction cross section at 11.1 GeV for $\psi \mathrm{}\left(3105\right)\mathrm{}$ on nucleons times the branching ratio for $\psi$ into $e^{+}{e}^{-}$ is less than 75 pb, at the 90% confidence level. This result implies a $\psi$-nucleon total cross section of less than 1.2 mb.