On transverse momentum broadening in real-time lattice simulations of the glasma and in the weak-field limit
arXiv:2112.03883 · doi:10.1051/epjconf/202225805002
Abstract
In these proceedings, we report on our numerical lattice simulations of partons traversing the boost-invariant, non-perturbative glasma as created at the early stages of collisions at RHIC and LHC. Since these highly energetic partons are produced from hard scatterings during heavy-ion collisions, they are already affected by the first stage of the medium's time evolution, the glasma, which is the pre-equilibrium precursor state of the quark-gluon plasma. We find that partons quickly accumulate transverse momentum up to the saturation momentum during the glasma stage. Moreover, we observe an interesting anisotropy in transverse momentum broadening of partons with larger broadening in the rapidity than in the azimuthal direction. Its origin can be related to correlations among the longitudinal color-electric and color-magnetic flux tubes in the initial state of the glasma. We compare these observations to the semi-analytic results obtained by a weak-field approximation, where we also find such an anisotropy in a parton's transverse momentum broadening.
arXiv comment8 pages, 3 figures, submitted to vConf2021 conference proceedings
References in corpus (31)
- Computing Quark and Gluon Distribution Functions for Very Large Nuclei
- Gluon Distribution Functions for Very Large Nuclei at Small Transverse Momentum
- The Color Glass Condensate
- Heavy Ion Collisions: The Big Picture, and the Big Questions
- Hydrodynamic Modeling of Heavy-Ion Collisions
- Event-by-event anisotropic flow in heavy-ion collisions from combined Yang-Mills and viscous fluid dynamics
- 3+1D hydrodynamic simulation of relativistic heavy-ion collisions
- Calculating the Jet Quenching Parameter from AdS/CFT
- Some Features of the Glasma
- Event-by-event gluon multiplicity, energy density and eccentricities at RHIC and LHC
- Gluon Production at High Transverse Momentum in the McLerran-Venugopalan Model of Nuclear Structure Functions
- Event-by-event fluctuations in perturbative QCD + saturation + hydro model: pinning down QCD matter shear viscosity in ultrarelativistic heavy-ion collisions
- Non-perturbative computation of gluon mini-jet production in nuclear collisions at very high energies
- Production of gluons in the classical field model for heavy ion collisions
- Higher flow harmonics from (3+1)D event-by-event viscous hydrodynamics
- Universal attractor in a highly occupied non-Abelian plasma
- Transverse Momentum Broadening of a Fast Quark in a Yang Mills Plasma
- Review of Jet Measurements in Heavy Ion Collisions
- Jet physics in heavy-ion collisions
- Color Glass Condensate and Glasma
- A lattice study of the jet quenching parameter
- Impact of Glasma on heavy quark observables in nucleus-nucleus collisions at LHC
- Measuring Quark-Gluon-Plasma Thermalization Time with Dileptons
- Jet momentum broadening in the pre-equilibrium Glasma
- Anisotropic momentum broadening in the 2+1D Glasma: analytic weak field approximation and lattice simulations
- The cathode tube effect: heavy quarks probing the Glasma in p-Pb collisions
- Initial energy density and gluon distribution from the Glasma in heavy-ion collisions
- Yoctosecond photon pulses from quark-gluon plasmas
- Momentum broadening in unstable quark-gluon plasma
- Probing the early-time dynamics of relativistic heavy-ion collisions with electromagnetic radiation
- Yoctosecond metrology through HBT correlations from a quark-gluon plasma