Is J/psi-Nucleon Scattering Dominated by the Gluonic van der Waals Interaction?

The gluon-exchange contribution to $J\mathrm{/}\psi$-nucleon scattering is shown to yield a sizeable scattering length of about -0.25 fm, which is consistent with the sparse available data. Hadronic corrections to gluon exchange which are generated by $\rho \pi$ and $D\bar{D}$ intermediate states of the $J\mathrm{/}\psi$ are shown to be negligible. We also propose a new method to study $J\mathrm{/}\psi$-nucleon elastic scattering in the reaction ${\pi }^{+}d\to J\mathrm{/}\psi pp$.