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Charmonium absorption cross section by nucleon

W. Liu·C. M. Ko·Z. W. Lin
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Abstract

The $J/ψ$ absorption cross section by nucleon is studied using a gauged SU(4) hadronic Lagrangian but with empirical particle masses, which has been used previously to study the $J/ψ$ absorption cross section by pion and rho meson. Including both two-body and three-body final states, we find that with a cutoff parameter of 1 GeV at interaction vertices involving charm hadrons, the $J/ψ-N$ absorption is at most 5 mb and is consistent with that extracted from $J/ψ$ production from both photo-nuclear and proton-nucleus reactions.

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W. Liu, C. M. Ko, Z. W. Lin. 2001-07-27. Charmonium absorption cross section by nucleon. https://doi.org/10.1103/physrevc.65.015203

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