Probing parton saturation and the gluon dipole via diffractive jet production at the Electron-Ion Collider

Abstract

We demonstrate that hard dijet production via coherent inelastic diffraction is a promising channel for probing gluon saturation at the Electron-Ion Collider. By $inelastic$ diffraction we mean a process in which the two hard jets - a quark-antiquark pair generated by the decay of the virtual photon - are accompanied by a softer gluon jet, emitted by the quark or the antiquark. This process can be described as the elastic scattering of an effective gluon-gluon dipole. The cross section takes a factorised form, between a hard factor and a unintegrated ("Pomeron") gluon distribution describing the transverse momentum imbalance between the hard dijets. The dominant contribution comes from the black disk limit and leads to a dijet imbalance of the order of the target saturation momentum $Q_s$ evaluated at the rapidity gap. Integrating out the dijet imbalance, we obtain a collinear factorization where the initial condition for the DGLAP evolution is set by gluon saturation.

2 figures, 7 pages, to be published in Physical Review Letters

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• Diffractive deep inelastic scattering at NLO in the dipole picture: the $q\bar{q}g$ contribution
• Harmonics of Parton Saturation in Lepton-Jet Correlations at the EIC
• Machine learning-based jet and event classification at the Electron-Ion Collider with applications to hadron structure and spin physics
• Dihadron production in DIS at NLO: the real corrections
• Vector quarkonia at the LHC with JETHAD: A high-energy viewpoint
• Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons
• Diffractive single hadron production in a saturation framework at the NLO
• Exotic tetraquarks at the HL-LHC with JETHAD: A high-energy viewpoint
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• Triply Heavy $\Omega$ Baryons with JETHAD: A High-Energy Viewpoint
• Tetraquark-Jet Systems at the High-Luminosity LHC
• Gluonic contributions to semi-inclusive DIS in the target fragmentation region
• Incoherent diffractive dijet production and gluon Bose enhancement in the nuclear wave function
• Probing Gluon Bose Correlations in Nuclear Wave Function in Deep Inelastic Scattering
• Physics with high-luminosity proton-nucleus collisions at the LHC
• Probing gluon saturation via diffractive jets in ultra-peripheral nucleus-nucleus collisions
• Diffractive deep inelastic scattering in the dipole picture: the $q\bar{q}g$ contribution in exact kinematics