Gluon multiplicity in coherent diffraction of onium on a heavy nucleus

Abstract

We derive the cross section for the diffractive gluon production in high energy onium-nucleus collisions that includes the low-x evolution effects in the rapidity interval between the onium and the produced gluon and in the rapidity interval between the gluon and the target nucleus. We analyze our result in two limiting cases: when the onium size is much smaller than the saturation scale and when its size is much larger than the saturation scale. In the later case the gluon multiplicity is very small in the quasi-classical case and increases when the low-x evolution effects in onium become significant. We discuss the implications of our result for the RHIC, LHC and EIC phenomenology.

21 pages, 5 figures

References in corpus (6)

• A unified description of diffractive deep inelastic scattering with saturation
• Treading on the cut: Semi inclusive observables at high energy
• Production of q bar-q Pairs in Proton-Nucleus Collisions at High Energies
• High energy pA collisions in the Color Glass Condensate approach
• Forward hadron production in high energy pA collisions: from RHIC to LHC
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Cited by in corpus (4)

• Exclusive vector meson production in electron-ion collisions
• Coherent and incoherent diffractive hadron production in pA collisions and gluon saturation
• Probing the low-x structure of nuclear matter with diffractive hadron production in pA collisions
• Single diffractive production of open heavy flavor mesons