Linearly polarized gluons and axial charge fluctuations in the Glasma

Abstract

We calculate of the one- and two-point correlation functions of the energy density and the divergence of the Chern-Simons current in the nonequilibrium Glasma state formed in a high-energy nuclear collision. We show that the latter depends on the difference of the total and linearly polarized gluon transverse momentum distributions. Since the divergence of the Chern-Simons current provides the source of axial charge, we infer information about the statistical properties of axial charge production at early times. We further develop a simple phenomenological model to characterize axial charge distributions in terms of distributions of the energy density.

36 pages, 3 figures

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• Magnetic fields in heavy ion collisions: flow and charge transport
• Multi-gluon correlations and evidence of saturation from dijet measurements at an Electron Ion Collider
• Measuring the Weizsaecker-Williams distribution of linearly polarized gluons at an EIC through dijet azimuthal asymmetries
• The Chiral Magnetic Effect and an experimental bound on the late time magnetic field strength
• The importance of kinematic twists and genuine saturation effects in dijet production at the Electron-Ion Collider
• Influence of the neutron-skin effect on nuclear isobar collisions at RHIC
• Chiral Magnetic Effect in Heavy Ion Collisions: The Present and Future
• Spin polarization and correlation of quarks from glasma
• 3-D structure of the Glasma initial state -- Breaking boost-invariance by collisions of extended shock waves in classical Yang-Mills theory
• Exponential Approach to the Hydrodynamic Attractor in Yang-Mills Kinetic Theory
• Initial correlations of the Glasma energy-momentum tensor
• Sub-femtometer scale color charge correlations in the proton
• Physical characteristics of glasma from the earliest stage of relativistic heavy ion collisions
• Space-time structure of 3+1D color fields in high energy nuclear collisions
• Hot spots and gluon field fluctuations as causes of eccentricity in small systems
• The energy-momentum tensor at the earliest stage of relativistic heavy ion collisions
• Statistical analysis of initial state and final state response in heavy-ion collisions
• Phenomenological implications of asymmetric $Ad{S}_5$ shockwave collision studies for heavy ion physics
• Evolution of initial stage fluctuations in the glasma
• Nonequilibrium axial charge production in expanding glasma flux tubes
• Model comparison for initial density fluctuations in high energy heavy ion collisions
• Evolution of eccentricities induced by geometrical and quantum fluctuations in proton-nucleus collisions
• Fluctuations of topological charge and chiral density in the early stage of high energy nuclear collisions
• Non-perturbative renormalization of the average color charge and multi-point correlators of color charge from a non-Gaussian small-$x$ action
• Accessing Topological Fluctuations of Gauge Fields with Chiral Magnetic Effect
• Chiral Cherenkov radiation in the presence of a time-dependent chiral chemical potential
• Topological charge fluctuations in the Glasma
• Chirality and Magnetic Field
• Memory effect in Yang-Mills theory with an axion
• Improving the solver for the Balitsky-Kovchegov evolution equation with Automatic Differentiation
• Color-glass condensate beyond the Gaussian approximation
• (3+1)D event-by-event pre-equilibrium dynamics in heavy-ion collisions
• Gauge invariant momentum broadening of hard probes in glasma