EPJ

2023 Impact factor 4.2
EPJ C - Particles and Fields
Particles and Fields
Eur. Phys. J. C 17, 461-465
DOI 10.1007/s100520000488

Photoproduction constraints on $J/\psi$-nucleon interactions

K. Redlich1,2,3 - H. Satz1 - G.M. Zinovjev1,4

1 Fakultät für Physik, Universität Bielefeld, 33501 Bielefeld, Germany
2 Gesellschaft für Schwerionenforschung, 64220 Darmstadt, Germany
3 Institute of Theoretical Physics, University of Wroc\law, 50204 Wroc\law, Poland
4 Bogolyubov Institute of Theoretical Physics, Academy of Sciences, 252143 Kiev, Ukraine

Received: 29 June 2000 / Published online: 8 September 2000 - © Springer-Verlag 2000

Abstract
Using $J/\psi$ and open charm photoproduction data, we apply the vector meson dominance model to obtain constraints on the energy dependence of the inelastic $J/\psi$-nucleon cross section. Predictions of short distance QCD are in accord with these constraints, while recently proposed hadronic models for $J/\psi$ dissociation strongly violate them.

Copyright Società Italiana di Fisica, Springer-Verlag 2000

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