Charmonium absorption cross section by nucleon
Abstract
The J/ 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/ 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/-N absorption is at most 5 mb and is consistent with that extracted from J/ production from both photo-nuclear and proton-nucleus reactions.
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