Energy-momentum tensor of the dilute (3+1)D Glasma
arXiv:2401.10320 · doi:10.1103/PhysRevD.109.094040
Abstract
We present a succinct formulation of the energy-momentum tensor of the Glasma characterizing the initial color fields in relativistic heavy-ion collisions in the Color Glass Condensate effective theory. We derive concise expressions for the (3+1)D dynamical evolution of symmetric nuclear collisions in the weak field approximation employing a generalized McLerran-Venugopalan model with non-trivial longitudinal correlations. Utilizing Monte Carlo integration, we calculate in unprecedented detail non-trivial rapidity profiles of early-time observables at RHIC and LHC energies, including transverse energy densities and eccentricities. For our setup with broken boost invariance, we carefully discuss the placement of the origin of the Milne frame and interpret the components of the energy-momentum tensor. We find longitudinal flow that deviates from standard Bjorken flow in the (3+1)D case and provide a geometric interpretation of this effect. Furthermore, we observe a universal shape in the flanks of the rapidity profiles regardless of collision energy and predict that limiting fragmentation should also hold at LHC energies.
arXiv comment20 pages, 15 figures, 2 videos. Raw data and plots can be downloaded from https://doi.org/10.5281/zenodo.10809853
References in corpus (58)
- Computing Quark and Gluon Distribution Functions for Very Large Nuclei
- Glauber Modeling in High Energy Nuclear Collisions
- Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
- Collective flow and viscosity in relativistic heavy-ion collisions
- The Color Glass Condensate
- Heavy Ion Collisions: The Big Picture, and the Big Questions
- Elliptic and triangular flow in event-by-event (3+1)D viscous hydrodynamics
- Hydrodynamic Modeling of Heavy-Ion Collisions
- Fluctuating Glasma initial conditions and flow in heavy ion collisions
- Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics
- Some Features of the Glasma
- Effective Kinetic Theory for High Temperature Gauge Theories
- Event-by-event gluon multiplicity, energy density and eccentricities at RHIC and LHC
- Event-by-Event Simulation of the Three-Dimensional Hydrodynamic Evolution from Flux Tube Initial Conditions in Ultrarelativistic Heavy Ion Collisions
- The significance of the fragmentation region in ultrarelativistic heavy ion collisions
- Multi-system Bayesian constraints on the transport coefficients of QCD matter
- Production of gluons in the classical field model for heavy ion collisions
- Isotropization and hydrodynamization in weakly coupled heavy-ion collisions
- Pseudorapidity distributions of charged particles from Au+Au collisions at the maximum RHIC energy, Sqrt(s_NN) = 200 GeV
- Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum
- Evidence of strong proton shape fluctuations from incoherent diffraction
- Evidence for transverse momentum and pseudorapidity dependent event plane fluctuations in PbPb and pPb collisions
- Effective kinetic description of event-by-event pre-equilibrium dynamics in high-energy heavy-ion collisions
- Energy density of the Glasma
- Color Glass Condensate and Glasma
- Next-to-eikonal corrections in the CGC: gluon production and spin asymmetries in pA collisions
- Scaling of Charged Particle Production in d+Au Collisions at sqrt(s_NN) = 200 GeV
- Measurement of longitudinal flow de-correlations in Pb+Pb collisions at and 5.02 TeV with the ATLAS detector
- Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution
- Moving forward to constrain the shear viscosity of QCD matter
- 3-D Glasma initial state for relativistic heavy ion collisions
- Decorrelation of anisotropic flows along the longitudinal direction
- A Gaussian effective theory for gluon saturation
- The shape of the proton at high energies
- Longitudinal dynamics and particle production in relativistic nuclear collisions
- Expanding color flux tubes and instabilities
- Next-to-next-to-eikonal corrections in the CGC
- Towards the Little Bang Standard Model
- Broken boost invariance in the Glasma via finite nuclei thickness
- Pseudorapidity correlations in heavy ion collisions from viscous fluid dynamics
- Longitudinal Resolution in a Large Relativistic Nucleus: Adding a Dimension to the McLerran-Venugopalan Model
- Simulating collisions of thick nuclei in the color glass condensate framework
- Rapidity dependence of initial state geometry and momentum correlations in p+Pb collisions
- Randomness in infinitesimal extent in the McLerran-Venugopalan model
- 3-D structure of the Glasma initial state -- Breaking boost-invariance by collisions of extended shock waves in classical Yang-Mills theory
- Progress on 3+1D Glasma simulations
- Space-time structure of 3+1D color fields in high energy nuclear collisions
- Two-particle correlations in pseudorapidity in a hydrodynamic model
- Hot spots and gluon field fluctuations as causes of eccentricity in small systems
- Exploring Longitudinal Observables with 3+1D IP-Glasma
- IP-Glasma Phenomenology Beyond 2D
- Implicit schemes for real-time lattice gauge theory
- Rapidity Profile of the Initial Energy Density in Heavy-Ion Collisions
- Evolution of initial stage fluctuations in the glasma
- Determination of the Parameters of a Color Neutral 3D Color Glass Condensate Model
- Evolution of eccentricities induced by geometrical and quantum fluctuations in proton-nucleus collisions
- Studying the 3+1D structure of the Glasma using the weak field approximation
- Longitudinal correlations in the initial stages of ultra-relativistic nuclear collisions