High-p⊥ jets in diffractive electroproduction

The diffractive production of high-p⊥ jets in deep-inelastic scattering is studied in the semiclassical approach. The p⊥-spectra of qq and qqg diffractive final states are found to be qualitatively different. For qq fina states, which are produced by ‘hard’ colour-singlet exchange, the p⊥-spectrum is much softer than for qqg final states, where the colour neutralization is ‘soft’. Furthermore, the two different final states can be clearly distinguished by their diffractive mass distributions.