Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: real corrections

Abstract

We studied the $ep\to ep+2jets$ diffractive cross section with ZEUS phase space. Neglecting the $t$-channel momentum in the Born and gluon dipole impact factors, we calculated the corresponding contributions to the cross section differential in $\beta =\frac{Q^2}{Q^2+M_{2jets}^2}$ and the angle $\varphi$ between the leptonic and hadronic planes. The gluon dipole contribution was obtained in the exclusive $k_t$-algorithm with the exclusive cut $y_{cut}=0.15$ in the small $y_{cut}$ approximation. In the collinear approximation we canceled singularities between real and virtual contributions to the $q\bar{q}$ dipole configuration, keeping the exact $y_{cut}$ dependency. We used the Golec-Biernat - Wüsthoff (GBW) parametrization for the dipole matrix element and linearized the double dipole contributions. The results give roughly $\frac{1}{2}$ of the observed cross section for small $\beta$ and coincides with it for large $\beta .$

arXiv comment40 pages, 7 figures

References in corpus (42)

• Operator expansion for high-energy scattering
• Nonlinear Gluon Evolution in the Color Glass Condensate: I
• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• The Wilson renormalization group for low x physics: towards the high density regime
• The BFKL Equation from the Wilson Renormalization Group
• Nonlinear Gluon Evolution in the Color Glass Condensate: II
• The Renormalization Group Equation for the Color Glass Condensate
• The Wilson renormalization group for low x physics: Gluon evolution at finite parton density
• Unitarity at small Bjorken x
• Exclusive diffractive processes at HERA within the dipole picture
• Relating different approaches to nonlinear QCD evolution at finite gluon density
• Factorization and high-energy effective action
• Unitarization of Gluon Distribution in the Doubly Logarithmic Regime at High Density
• Proof of Factorization for Diffractive Hard Scattering
• Measurement and QCD Analysis of the Diffractive Deep-Inelastic Scattering Cross Section at HERA
• Factorization for high-energy scattering
• Effective field theory for the small-x evolution
• Probing the Small-$x$ Gluon Tomography in Correlated Hard Diffractive Dijet Production in DIS
• Diffractive Deep-Inelastic Scattering with a Leading Proton at HERA
• Gluon orbital angular momentum at small-$x$
• Study of deep inelastic inclusive and diffractive scattering with the ZEUS forward plug calorimeter
• Paving the Way Towards Precision Physics in Saturation Studies Through Exclusive Diffractive Light Neutral Vector Meson Production
• Diffractive Dijet Production in Deep Inelastic Scattering and Photon-Hadron Collisions in the Color Glass Condensate
• Dissociation of virtual photons in events with a leading proton at HERA
• Accessing the gluon Wigner distribution in ultraperipheral $pA$ collisions
• Diffractive Dijet Production and Wigner Distributions from the Color Glass Condensate
• On the one loop ${\gamma }^{(\ast )}\to q\bar{q}$ impact factor and the exclusive diffractive cross sections for the production of two or three jets
• Elliptic flow from color-dipole orientation in pp and pA collisions
• Deep inelastic scattering with leading protons or large rapidity gaps at HERA
• An Analysis of Diffraction in Deep-Inelastic Scattering
• Hunting the Gluon Orbital Angular Momentum at the Electron-Ion Collider
• Diffractive dijet production in impact parameter dependent saturation models
• Impact factor for high-energy two and three jets diffractive production
• Measurement of the Diffractive Deep-Inelastic Scattering Cross Section with a Leading Proton at HERA
• Combined inclusive diffractive cross sections measured with forward proton spectrometers in deep inelastic ep scattering at HERA
• Inclusive Measurement of Diffractive Deep-Inelastic Scattering at HERA
• Azimuthal Distribution of Quark-Antiquark Jets in DIS Diffractive Dissociation
• Elliptic Flow in Small Systems due to Elliptic Gluon Distributions?
• Inclusive dijet photoproduction in ultraperipheral heavy-ion collisions at the CERN LHC in next-to-leading order QCD
• Diffractive dijet photoproduction in ultraperipheral collisions at the LHC in next-to-leading order QCD
• Constraints on nuclear parton distributions from dijet photoproduction at the LHC
• A fresh look at factorization breaking in diffractive photoproduction of dijets at HERA at next-to-leading order QCD

Cited by in corpus (17)

• Mining for Gluon Saturation at Colliders
• The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider
• Nucleon Energy Correlators for the Color Glass Condensate
• One-Loop Corrections to Dihadron Production in DIS at Small $x$
• Probing the Sivers function with an unpolarized target: GTMD distributions and the Odderons
• Forward Higgs production within high energy factorization in the heavy quark limit at next-to-leading order accuracy
• Single Inclusive Hadron Production in DIS at Small $x$: Next to Leading Order Corrections
• NLO computation of diffractive di-hadron production in a saturation framework
• Harmonics of Parton Saturation in Lepton-Jet Correlations at the EIC
• Single Inclusive Jet Production in $pA$ Collisions at NLO in the small-$x$ regime
• Hybrid kT-factorization and impact factors at NLO
• Diffractive single hadron production in a saturation framework at the NLO
• Investigating the diffractive gluon jet production in lepton-ion collisions
• Exclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at the LHC and FCC energies
• Dijet impact factor in DIS at next-to-leading order in the Color Glass Condensate
• GTMD model predictions for diffractive dijet production at EIC
• Diffractive deep inelastic scattering in the dipole picture: the $q\bar{q}g$ contribution in exact kinematics