SIGNALS FOR INTRINSIC CHARM IN HIGH-ENERGY INTERACTIONS

The prospects to test the hypothesis of intrinsic charm quarks in the proton are investigated. We consider how this component can be directl y or indirectly probed in deep inelastic scattering at HERA and in fix ed target experiments and find that an overlooked signal might be pres ent in existing NMC data. Applying the intrinsic charm model to hadron collisions we compare the resulting charm production cross-sections w ith those based on standard perturbative QCD and available data. Extra polating to higher energies we obtain predictions for charm production at the Tevatron and LHC.