Production ofψ(3100)andψ′(3700)inp-Be Collisions at 400 GeV

We report preliminary results on the production of electron-positron pairs in the mass range 2.5 to 4 GeV in 400-GeV $p$-Be interactions. Production cross sections of the $\psi \mathrm{}\left(3100\right)\mathrm{}$ near $x=0\mathrm{}$ as a function of $p_t$, $x$, and the decay angle are presented and implications of these new data for single direct leptons are discussed. A ${\psi }^{\prime }\mathrm{}\left(3700\right)\mathrm{}$ signal is observed at a level corresponding to $\frac{\sigma \left({\psi }^{\prime }\right)}{\sigma \left(\psi \right)}=(10\mathrm{}\pm 3)\%$.