The Modified Intrinsic Charm Model And J/Psi Production in Hadronic Collisions

Using the statistical approach additional light partons have been introduced in the Intrinsic Charm model. Explicit expressions are obtained for charmed and light quark distributions. A comparison is made with standard IC model predictions. It is shown that such a modification of the IC model leads to better agreement with the $pN$ and $\pi N$ data on $\JP$ production at low energies and allows to avoid a contradiction to experimental data at high energy.