Next-to-eikonal corrections in the CGC: gluon production and spin asymmetries in pA collisions

Abstract

We present a new method to systematically include corrections to the eikonal approximation in the background field formalism. Specifically, we calculate the subleading, power-suppressed corrections due to the finite width of the target or the finite energy of the projectile. Such power-suppressed corrections involve Wilson lines decorated by gradients of the background field - thus related to the density - of the target. The method is of generic applicability. As a first example, we study single inclusive gluon production in pA collisions, and various related spin asymmetries, beyond the eikonal accuracy.

arXiv comment34 pages, new reference added, some typos corrected

References in corpus (33)

• Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma
• Fully quantum treatment of the Landau--Pomeranchuk--Migdal effect in QED and QCD
• Final-State Interactions and Single-Spin Asymmetries in Semi-Inclusive Deep Inelastic Scattering
• Semi-inclusive deep inelastic scattering at small transverse momentum
• Gluon Radiation off Hard Quarks in a Nuclear Environment: Opacity Expansion
• Multiplicity and transverse-momentum dependence of two- and four-particle correlations in pPb and PbPb collisions
• Gluon production in current-nucleus and nucleon-nucleus collisions in a quasi-classical approximation
• Single Transverse-Spin Asymmetries in Hadronic Pion Production
• Cronin Effect and High-p_T Suppression in pA Collisions
• Quark Imaging in the Proton Via Quantum Phase-Space Distributions
• Long-range angular correlations of $\pi$, K and p in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• The Color Glass Condensate and hadron production in the forward region
• Inclusive Gluon Production in DIS at High Parton Density
• High energy pA collisions in the color glass condensate approach I. Gluon production and the Cronin effect
• Measurement with the ATLAS detector of multi-particle azimuthal correlations in p+Pb collisions at sqrt(s_NN)=5.02 TeV
• Viewing the Proton Through "Color"-Filters
• Inclusive Hadron Productions in pA Collisions
• Path integral approach to eikonal and next-to-eikonal exponentiation
• Transverse-Spin and Transverse-Momentum Effects in High-Energy Processes
• How Protons Shatter Colored Glass
• Structure analysis of the generalized correlator of quark and gluon for a spin-1/2 target
• Renormalization of the jet-quenching parameter
• Particle Production at High Energy and Large Transverse Momentum - "The Hybrid Formalism" Revisited
• Particle production in field theories coupled to strong external sources I. Formalism and main results
• A New Mechanism for Generating a Single Transverse Spin Asymmetry
• Random walks of partons in SU(N_c) and classical representations of color charges in QCD at small x
• Next-to-leading order forward hadron production in the small-$x$ regime: rapidity factorization
• Relating the description of gluon production in pA collisions and parton energy loss in AA collisions
• High energy pA collisions in the Color Glass Condensate approach
• Sivers Function in the Quasi-Classical Approximation
• Polarized Hyperons from pA Scattering in the Gluon Saturation Regime
• Coherence phenomena between initial and final state radiation in a dense QCD medium
• Stationary stagnation point flows in the vicinity of a 2D magnetic null point: I. Systems with vanishing electric field and an X-type magnetic null point

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