Colorless States in Perturbative QCD: Charmonium and Rapidity Gaps

Abstract

We point out that an unorthodox way to describe the production of rapidity gaps in deep inelastic scattering, recently proposed by Buchmüller and Hebecker, suggests a description of the production of heavy quark bound states which is in agreement with data. The approach questions the conventional treatment of the color quantum number in perturbative QCD.

Figures (9)

• Figure 1: Mechanism for the production of rapidity gaps in deep inelastic scattering.
• Figure 2: Pomeron mechanism for the formation of rapidity gaps.
• Figure 3: Pomeron mechanism for the formation of rapidity gaps in hadron collisions.
• Figure 4: Color bleaching picture for the formation of rapidity gaps in hadron collisions.
• Figure 5: Mechanism for the production of $J/\psi$ in the color singlet model.