Could saturation effects be visible in a future electron-ion collider?

Abstract

We expect to observe parton saturation in a future electron - ion collider. In this letter we discuss this expectation in more detail considering two different models which are in good agreement with the existing experimental data on nuclear structure functions. In particular, we study the predictions of saturation effects in electron - ion collisions at high energies, using a generalization for nuclear targets of the b-CGC model, which describes the $ep$ HERA quite well. We estimate the total, longitudinal and charm structure functions in the dipole picture and compare them with the predictions obtained using collinear factorization and modern sets of nuclear parton distributions. Our results show that inclusive observables are not very useful in the search for saturation effects. In the small $x$ region they are very difficult to disentangle from the predictions of the collinear approaches . This happens mainly because of the large uncertainties in the latter. On the other hand, our results indicate that the contribution of diffractive processes to the total cross section is about 20 % at large A and small Q^2, allowing for a detailed study of diffractive observables. The study of diffractive processes becomes essential to observe parton saturation.

7 pages 5 figures

References in corpus (76)

• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• Saturation in Diffractive Deep Inelastic Scattering
• An Impact Parameter Dipole Saturation Model
• Exclusive diffractive processes at HERA within the dipole picture
• Geometric scaling for the total gamma^* p cross section in the low x region
• Saturation and BFKL dynamics in the HERA data at small x
• A Modification of the Saturation Model: DGLAP evolution
• Saturation Physics and Deuteron--Gold Collisions at RHIC
• Evolution at small x_bj: The Color Glass Condensate
• Quark contribution to the small-$x$ evolution of color dipole
• Evolution of the nuclear modification factors with rapidity and centrality in d+Au collisions at $\sqrt{s_{NN}} = 200 GeV
• Transverse Momentum Spectra in Au+Au and d+Au Collisions at $\sqrt{s_{NN}}$=200 GeV and the Pseudorapidity Dependence of High p${}_T$ Suppression
• Triumvirate of Running Couplings in Small-x Evolution
• Nuclear parton distributions at next to leading order
• The Color Glass Condensate and hadron production in the forward region
• Relating high-energy lepton-hadron, proton-nucleus and nucleus-nucleus collisions through geometric scaling
• Nuclear Modification Factor in d+Au Collisions: Onset of Suppression in the Color Glass Condensate
• Solving The High Energy Evolution Equation Including Running Coupling Corrections
• Structure function of the nucleus in the perturbative QCD with $N_c\to \infty$ (BFKL pomeron fan diagrams)
• Impact parameter dependent colour glass condensate dipole model
• Universal features of JIMWLK and BK evolution at small x
• The triple-pomeron regime and the structure function of the pomeron in the diffractive deep inelastic scattering at very small x
• Nuclear enhancement of universal dynamics of high parton densities
• On solutions of the Balitsky-Kovchegov equation with impact parameter
• Diffusion into infra-red and unitarization of the BFKL pomeron
• An improved global analysis of nuclear parton distribution functions including RHIC data
• Shadowing in Inelastic Scattering of Muons on Carbon, Calcium and Lead at Low XBj
• On determination of the large-$\frac{1}{x}$ gluon distribution at HERA
• Numerical analysis of the Balitsky-Kovchegov equation with running coupling: dependence of the saturation scale on nuclear size and rapidity
• Study of the Fundamental Structure of Matter with an Electron-Ion Collider
• Parton densities and dipole cross-sections at small x in large nuclei
• Nuclear enhancement and suppression of diffractive structure functions at high energies
• A simple model for nuclear structure functions at small $x$ in the dipole picture
• Particle multiplicities in Lead-Lead collisions at the LHC from non-linear evolution with running coupling
• Breakdown of QCD factorization at large Feynman x
• Unintegrated gluon distribution from modified BK equation
• Extracting the dipole cross-section from photo- and electro-production total cross-section data
• Coherent QCD multiple scattering in proton-nucleus collisions
• Geometric scaling violations in the central rapidity region of d+Au collisions at RHIC
• Diffractive Structure Function in a Quasi-Classical Approximation
• Scaling phenomena from non-linear evolution in high energy DIS
• Geometric scaling in diffractive deep inelastic scattering
• Saturation physics at HERA and RHIC: An unified description
• Centrality dependence of charged-particle pseudorapidity distributions from d+Au collisions at sqrt(s_{NN})=200 GeV
• Geometric Scaling at RHIC and LHC
• Gluon Saturation in the Colour Dipole Model?
• The high energy asymptotics of scattering processes in QCD
• Geometric Scaling in Inclusive Charm Production
• Non-linear evolution and parton distributions at LHC and THERA energies
• Parton densities and saturation scale from non-linear evolution in DIS on nuclei
• Towards a New Global QCD Analysis: Solution to the Non-Linear Equation at Arbitrary Impact Parameter
• Forward Production in d+Au Collisions by Parton Recombination
• Higher Order Effects in Non Linear Evolution from a Veto in Rapidities
• Forward Rapidity Hadron Production in Deuteron Gold Collisions from Valence Quarks
• Saturation in diffractive deep inelastic eA scattering
• Geometric Scaling from GLAP evolution
• Non-linear evolution and high energy diffractive production
• The Balitsky-Kovchegov equation in full momentum space
• Leading twist coherent diffraction on nuclei in deep inelastic scattering at small x and nuclear shadowing
• Predicting F2D(3) from the dipole cross-section
• QCD dipole model and k_T factorization
• Deep inelastic inclusive and diffractive scattering at $Q^2$ values from 25 to 320 GeV${}^2$ with the ZEUS forward plug calorimeter
• Shadowing Effects on the Nuclear Suppression Factor, R_dAu, in d+Au Interactions
• Gluon Distributions and Fits using Dipole Cross-Sections
• Gluon shadowing in the low x region probed by the LHC
• Constraining the nuclear gluon distribution in $eA$ processes at RHIC
• Nuclear Heavy Quark Photoproduction in a Saturation Model
• Diffractive parton distributions from perturbative QCD
• Probing the Color Glass Condensate in an electron-ion collider
• Unitarity constraints for DIS off nuclei: predictions for electron-ion colliders
• A phenomenological analysis of the longitudinal structure function at small $x$ and low $Q^2$
• Searching Saturation in eA Processes
• Impact Parameter Dependence in the Balitsky-Kovchegov Equation
• Investigating F_L(x,Q2) at fixed energy in the color dipole formalism
• Deeply inelastic scattering off nuclei at RHIC
• Suppression of High Transverse Momentum ${\pi }^0$ Spectra in Au+Au Collisions at RHIC

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• Exclusive vector meson production in electron-ion collisions
• Charm and longitudinal structure functions with the Kharzeev-Levin-Nardi model
• Coherent and incoherent vector meson electroproduction in the future electron-ion colliders: the hot-spot predictions
• Diffractive deeply inelastic scattering in future electron-ion colliders
• Unveiling saturation effects from nuclear structure function measurements at the EIC
• Deeply virtual Compton scattering at small-$x$ in future Electron - Ion Colliders
• Nuclear effects in Drell-Yan pair production in high-energy $pA$ collisions
• Predictions for nuclear structure functions from the impact-parameter dependent Balitsky-Kovchegov equation
• Nuclear effects on the longitudinal structure function at small x
• Inclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at Run 2 LHC energies
• A simple model for the nuclear unintegrated gluon distribution
• Heavy quark production in deep inelastic electron-nucleus scattering
• Exclusive vector meson production in electron-ion collisions at the EIC, LHeC and FCC-$eh$
• Exclusive processes in $ep$ collisions at the EIC and LHeC: A closer look on the predictions of saturation models
• Nuclear longitudinal structure function in eA processes at the LHeC
• Small-$x$ QCD evolution of $2n$ Wilson line correlator: the weak field limit
• Diffractive $\rho$ production at small $x$ in future Electron - Ion Colliders
• Nuclear shadowing in deep inelastic scattering on nuclei: a closer look
• Exclusive heavy quark photoproduction in $pp$, $pPb$ and $PbPb$ collisions at the LHC and FCC energies
• A simple model for the charm structure function of nuclei
• Coulomb corrections to inclusive cross sections at the future Electron - Ion Collider
• Effects of heavy quarks in the dipole cross section with the KLN model
• Longitudinal Structure Function at the Limit $x=Q^2/s$