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

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

1997-07-17

arxiv.org/abs/hep-ph/9707382v1

Phys.Lett.B412:125-130,1997

Physics

High Energy Physics

High Energy Physics - Phenomenology

LaTex, 12 pages

Scientific paper

10.1016/S0370-2693(97)01045-9

The gluon-exchange contribution to $J/\psi$-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 $J/\psi$ are shown to be negligible. We also propose a new method to study $J/\psi$-nucleon elastic scattering in the reaction $\pi^+ d\to J/\psi p p$.

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