Diffractive Dijet Production in Deep Inelastic Scattering and Photon-Hadron Collisions in the Color Glass Condensate

Abstract

We study exclusive dijet production in coherent diffractive processes in deep inelastic scattering and real (and virtual) photon-hadron (${\gamma }^{(\ast )}$-h) collisions in the Color Glass Condensate formalism at leading order. We show that the diffractive dijet cross section is sensitive to the color-dipole orientation in the transverse plane, and is a good probe of possible correlations between the $q\bar{q}$-dipole transverse separation vector $\r$ and the dipole impact parameter $\b$. We also investigate the diffractive dijet azimuthal angle correlations and $t$-distributions in ${\gamma }^{(\ast )}$-h collisions and show that they are sensitive to gluon saturation effects in the small-$x$ region. In particular, we show that the $t$-distribution of diffractive dijet photo-production off a proton target exhibits a dip-type structure in the saturation region. This effect is similar to diffractive vector meson production. Besides, at variance with the inclusive case, the effect of saturation leads to stronger azimuthal correlations between the jets.

15 pages, 10 figures; v2: a clarifying Appendix added, 3 new plots added, references added. The version to appear in PLB

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• Asymmetric jet clustering in deep-inelastic scattering
• Color charge correlations in the proton at NLO: beyond geometry based intuition
• One-Loop Corrections to Dihadron Production in DIS at Small $x$
• Semi-inclusive Diffractive Deep Inelastic Scattering at Small-$x$
• Charm jets as a probe for strangeness at the future Electron-Ion Collider
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• Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: real corrections
• Single Inclusive Hadron Production in DIS at Small $x$: Next to Leading Order Corrections
• Diffractive deep inelastic scattering at NLO in the dipole picture: the $q\bar{q}g$ contribution
• Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD
• Wigner Distributions For Gluons
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• Proton hot spots and exclusive vector meson production
• Dihadron Production in DIS at Small $x$ at Next to Leading Order: Transverse Photons
• Directed flow from C-odd gluon correlations at small $x$
• Probing the gluon tomography in photoproduction of di-pions
• QCD Resummation in Hard Diffractive Dijet Production at the Electron-Ion Collider
• Particle correlations from the initial state
• Saturation effects in SIDIS at very forward rapidities
• Parton rescattering and gluon saturation in dijet production at EIC
• Electroproduction of heavy quarkonia: significance of dipole orientation
• Soft photon and two hard jets forward production in proton-nucleus collisions
• Incoherent diffractive dijet production in electron DIS off nuclei at high energy
• Exclusive heavy quark-pair production in ultraperipheral collisions
• Investigating the diffractive gluon jet production in lepton-ion collisions
• Azimuthal correlations within exclusive dijets with large momentum transfer in photon-lead collisions
• Probing proton structure with $c\bar{c}$ correlations in ultraperipheral $pA$ collisions
• New opportunities at the photon energy frontier
• Incoherent diffractive dijet production and gluon Bose enhancement in the nuclear wave function
• Exclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at the LHC and FCC energies
• Low-$x$ Physics in $pA$ Collisions and at the EIC
• Effective Field Theory Factorization for Diffraction
• How EIC can help us to understand heavy-ion collisions
• Mapping the internal structure of hadrons through color and spin effects
• Gluon imaging using azimuthal correlations in diffractive scattering at the Electron-Ion Collider
• GTMD model predictions for diffractive dijet production at EIC