Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory.

@article{Kurkela2018MatchingTN,
  title={Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory.},
  author={Aleksi Kurkela and Aleksas Mazeliauskas and Jean-François Paquet and S{\"o}ren Schlichting and Derek A. Teaney},
  journal={Physical review letters},
  year={2018},
  volume={122 12},
  pages={
          122302
        }
}
High-energy nuclear collisions produce a nonequilibrium plasma of quarks and gluons which thermalizes and exhibits hydrodynamic flow. There are currently no practical frameworks to connect the early particle production in classical field simulations to the subsequent hydrodynamic evolution. We build such a framework using nonequilibrium Green's functions, calculated in QCD kinetic theory, to propagate the initial energy-momentum tensor to the hydrodynamic phase. We demonstrate that this… 
View on PubMed
link.aps.org
80 Citations
Highly Influential Citations
4
Background Citations
17
Methods Citations
14
Results Citations
3

Figures from this paper

80 Citations

Matching the non-equilibrium initial stage of heavy ion collisions to hydrodynamics with QCD kinetic theory

In the collision of nuclei at high energies the produced matter reinteracts and forms a plasma which ultimately equilibrates and exhibits collective hydrodynamic flow. While a general theory of the…

Hydrodynamic Attractors, Initial State Energy, and Particle Production in Relativistic Nuclear Collisions.

The concept of hydrodynamic attractors is exploited to establish a macroscopic description of the early time out-of-equ equilibrium dynamics of high energy heavy-ion collisions and the energy density of the far-from-equilibrium initial state is estimated.

Prescaling and Far-from-Equilibrium Hydrodynamics in the Quark-Gluon Plasma.

It is demonstrated that the gluon and quark distributions very quickly adapt a self-similar scaling form, which is independent of initial condition details and system parameters, which gives rise to far-from-equilibrium hydrodynamic behavior.

Shear transport far from equilibrium via holography

Chemical Equilibration of QGP in Hadronic Collisions

We performed state-of-the-art QCD effective kinetic theory simulations of chemically equilibrating QGP in longitudinally expanding systems. We find that chemical equilibration takes place after…

Far From Equilibrium Hydrodynamics and the Beam Energy Scan

The existence of hydrodynamic attractors in rapidly expanding relativistic systems has shed light on the success of relativistic hydrodynamics in describing heavy-ion collisions at zero chemical…

Hydrodynamization and nonequilibrium Green’s functions in kinetic theory

Non-equilibrium Green's functions provide an efficient way to describe the evolution of the energy-momentum tensor during the early time pre-equilibrium stage of high-energy heavy ion collisions.…

Momentum broadening of energetic partons in an anisotropic plasma

The quark-gluon plasma produced in heavy-ion collisions is anisotropic throughout its evolution. This anisotropy changes the physics of jet-medium interaction, making it dependent on the momentum…

Recent development of hydrodynamic modeling in heavy-ion collisions

We present a concise review of the recent development of relativistic hydrodynamics and its applications to heavy-ion collisions. Theoretical progress on the extended formulation of hydrodynamics…

Prehydrodynamic evolution and its signatures in final-state heavy-ion observables

We investigate the effects of pre-hydrodynamic evolution on final-state observables in heavy-ion collisions using state-of-the art event simulations coupled to different pre-hydrodynamic scenarios,…
...

References

SHOWING 1-10 OF 72 REFERENCES

Turbulent thermalization process in heavy-ion collisions at ultrarelativistic energies

The non-equilibrium evolution of heavy-ion collisions is studied in the limit of weak coupling at very high energy employing lattice simulations of the classical Yang-Mills equations. Performing the…

Fully dynamical simulation of central nuclear collisions.

This work presents a fully dynamical simulation of central nuclear collisions around midrapidity at LHC energies, including the equilibration of the system, and the resulting light particle spectra reproduce the measurements from the ALICE experiment at all transverse momenta.

Isotropization and Hydrodynamization in Weakly Coupled Heavy-Ion Collisions.

We numerically solve the (2+1)-dimensional effective kinetic theory of weak coupling QCD under longitudinal expansion, relevant for early stages of heavy-ion collisions. We find agreement with…

Initial conditions for hydrodynamics from weakly coupled pre-equilibrium evolution

We use leading order effective kinetic theory to simulate the pre-equilibrium evolution of transverse energy and flow perturbations in heavy-ion collisions. We provide a Green function which…

Fluctuating glasma initial conditions and flow in heavy ion collisions.

We compute initial conditions in heavy ion collisions within the color glass condensate framework by combining the impact parameter dependent saturation model with the classical Yang-Mills…

Universal Flow in the First Stage of Relativistic Heavy Ion Collisions

In the first moments of a relativistic heavy ion collision explosive collective flow begins to grow before the matter has yet equilibrated. Here it is found that as long as the stress-energy tensor…

Free-streaming approximation in early dynamics of relativistic heavy-ion collisions

We investigate an approximation to early dynamics in relativistic heavy-ion collisions, where after formation the partons are free streaming and around the proper time of 1 fm/$c$ undergo a sudden…

Turbulent thermalization process in high-energy heavy-ion collisions

Initial state fluctuations and final state correlations in relativistic heavy-ion collisions

We review the phenomenology and theory of bulk observables in ultra-relativistic heavy-ion collisions, focusing on recent developments involving event-by-event fluctuations in the initial stages of a…

Production of photons in relativistic heavy-ion collisions

In this work it is shown that the use of a hydrodynamical model of heavy-ion collisions which incorporates recent developments, together with updated photon emission rates, greatly improves agreement…
...