Diffractive Bremsstrahlung in Hadronic Collisions

Abstract

Production of heavy photons (Drell-Yan), gauge bosons, Higgs bosons, heavy flavors, which is treated within the QCD parton model as a result of hard parton-parton collision, can be considered as a bremsstrahlung process in the target rest frame. In this review, we discuss the basic features of the diffractive channels of these processes in the framework of color dipole approach. The main observation is a dramatic breakdown of diffractive QCD factorisation due to the interplay between soft and hard interactions, which dominates these processes. This observation is crucial for phenomenological studies of diffractive reactions in high-energy hadronic collisions.

29 pages, 16 figures; typos corrected; references added; minor corrections

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Cited by in corpus (6)

• Mapping the dominant regions of the phase space associated with $c\bar{c}$ production relevant for the Prompt Atmospheric Neutrino Flux
• Isolated photon production and pion-photon correlations in high-energy $pp$ and $pA$ collisions
• Hard hadronic diffraction is not hard
• Diffractive dijet production: breakdown of factorization
• Diffractive gauge boson production at the LHC as a probe of the flavour content of the Pomeron
• Breakdown of QCD factorization in hard diffraction