Production of $J/\psi$ mesons in $p\mathrm{Be}$ collisions at 530 and $800\hspace{0.5em}\mathrm{GeV}/c$

We report on the production of $J/\psi$ mesons in 530 and $800\hspace{0.5em}\mathrm{GeV}/c$ $p\mathrm{Be}$ collisions in the Feynman-$x$ range $0.0<\mathrm{}{x}_F<\mathrm{0.6.}\mathrm{}$ The $J/\psi$ mesons were detected via decays into ${\mu }^{+}{\mu }^{-}.$ Differential distributions for $J/\psi$ production have been measured as functions of $x_F,$ $p_T^2,$ and the cosine of the Gottfried-Jackson decay angle. These distributions are compared with results on $J/\psi$ production obtained in $515\hspace{0.5em}\mathrm{GeV}/c\hspace{0.5em}{\pi }^{-}\mathrm{Be}$ collisions, measured by the same experiment, as well as with results from other experiments using incident protons.