Nuclear A-dependence near the Saturation Boundary

Abstract

The A-dependence of the saturation momentum and the scaling behavior of the scattering of a small dipole on a nuclear target are studied in the McLerran-Venugopalan model, in fixed coupling BFKL dynamics and in running coupling BFKL dynamics. In each case, we find scaling not too far from the saturation boundary, although for fixed coupling evolution the scaling function for large A is not the same as for an elementary dipole. We find that $Q_s^2$ is proportional to $A^{1/3}$ in the McLerran-Venugopalan model and in fixed coupling evolution, however, we find an almost total lack of A-dependence in $Q_s^2$ in the case of running coupling evolution.

13 pages, 1 eps figure, latex

References in corpus (22)

• Computing Quark and Gluon Distribution Functions for Very Large Nuclei
• Operator expansion for high-energy scattering
• Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
• Small-x F_2 Structure Function of a Nucleus Including Multiple Pomeron Exchanges
• Saturation Effects in Deep Inelastic Scattering at low $Q^2$ and its Implications on Diffraction
• Green's Functions in the Color Field of a Large Nucleus
• Unitarization of the BFKL Pomeron on a Nucleus
• Saturation in Diffractive Deep Inelastic Scattering
• Hadron production in nuclear collisions at RHIC and high density QCD
• Geometric scaling for the total gamma^* p cross section in the low x region
• Manifestations of high density QCD in the first RHIC data
• A Modification of the Saturation Model: DGLAP evolution
• Gluon production in current-nucleus and nucleon-nucleus collisions in a quasi-classical approximation
• The Energy Dependence of the Saturation Momentum
• Geometric Scaling above the Saturation Scale
• Fock Space Distributions, Structure Functions, Higher Twists and Small x
• Parton Saturation at Small x and in Large Nuclei
• Coherent gluon production in very high energy heavy ion collisions
• The initial gluon multiplicity in heavy ion collisions
• Quantum Corrections to the Weizsäcker--Williams Distribution Function as Small x
• Diffusion into infra-red and unitarization of the BFKL pomeron
• Does parton saturation at high density explain hadron multiplicities at RHIC ?

Cited by in corpus (47)

• The Color Glass Condensate
• Saturation Physics and Deuteron--Gold Collisions at RHIC
• Cronin Effect and High-p_T Suppression in pA Collisions
• Heavy-Quark Kinetics in the QGP at LHC
• Thermal Dileptons at LHC
• Heavy Ion Collisions at the LHC - Last Call for Predictions
• Color Glass Condensate at the LHC: hadron multiplicities in $pp$, $pA$ and $AA$ collisions
• High energy pA collisions in the color glass condensate approach I. Gluon production and the Cronin effect
• Relating high-energy lepton-hadron, proton-nucleus and nucleus-nucleus collisions through geometric scaling
• Universal features of JIMWLK and BK evolution at small x
• Nuclear enhancement of universal dynamics of high parton densities
• Long range two-particle rapidity correlations in A+A collisions from high energy QCD evolution
• Small-x physics beyond the Kovchegov equation
• 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
• Nuclear enhancement and suppression of diffractive structure functions at high energies
• CGC predictions for p+A collisions at the LHC and signature of QCD saturation
• Geometric scaling violations in the central rapidity region of d+Au collisions at RHIC
• Universality of the saturation scale and the initial eccentricity in heavy ion collisions
• Cronin effect and high-p_T suppression in the nuclear gluon distribution at small x
• Gluon saturation and energy dependence of hadron multiplicity in pp and AA collisions at the LHC
• Hadron multiplicity in pp and AA collisions at LHC from the Color Glass Condensate
• Small x physics and RHIC data
• Geometric Scaling in Inclusive Charm Production
• Towards a New Global QCD Analysis: Solution to the Non-Linear Equation at Arbitrary Impact Parameter
• Glauber - Gribov approach for DIS on nuclei in N=4 SYM
• Energy dependence of the saturation scale and the charged multiplicity in pp and AA collisions
• Running Coupling Corrections to High Energy Inclusive Gluon Production
• Systematics of strong nuclear amplification of gluon saturation from exclusive vector meson production in high energy electron-nucleus collisions
• Hadrons and direct photon in pp and pA collisions at LHC and saturation effects
• The QCD Pomeron in ultraperipheral heavy ion collisions: III. Photonuclear production of heavy quarks
• Heavy quark photoproduction in proton-proton collisions
• Nuclear size and rapidity dependence of the saturation scale from QCD evolution and experimental data
• Probing the Color Glass Condensate in an electron-ion collider
• Ultrahigh energy neutrinos and non-linear QCD dynamics
• On parton number fluctuations at various stages of the rapidity evolution
• O(α_s^2)-corrections to JIMWLK evolution from the classical equations of motion
• On correlations and discreteness in non-linear QCD evolution
• Thermal radiation and inclusive production in the KLN model for ion-ion collisions
• Total gluon shadowing due to fluctuation effects
• Color Glass Condensate and its relation to HERA physics
• Geometric Scaling in Mueller-Navelet Jets
• Proton and anti-proton production in the forward region of d+Au collisions at RHIC from the color glass condensate
• Classicalization and unitarization of wee partons in QCD and Gravity: The CGC-Black Hole correspondence
• High density QCD and nucleus-nucleus scattering deeply in the saturation region
• Multiplicity and transverse energy of produced gluon in relativistic heavy ion collision
• First correction to JIMWLK evolution from the classical equations of motion