衍射：色单子交换中的 QCD 效应

本文综述了在 HERA 和 Tevatron 所观察到的衍射现象测量结果。 presented a short introduction to the theoretical background where colour singlet exchange reactions are discussed and the diffractive contribution and its interpretation via pomeron exchange outlined. The review focuses on the current experimental directions at HERA and discusses exclusive production of vector mesons, the dissociation of real photons and the deep inelastic structure of diffraction. Complementary information obtained from hadronic final states and jet structures is also discussed. The experimental signatures for diffractive jet and $W^\pm$ production observed at the Tevatron are described and the rates compared with those from the HERA experiments.