REVIEW 7 cited by
Thermalization of gluons in ultrarelativistic heavy ion collisions by including three-body interactions in a parton cascade
Not yet reviewed by Pith; the record is open.
This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.
SPECIMEN: schema-true, not a live event
T0 review · schema-true
One-sentence machine reading of the paper's core claim.
pith:XXXXXXXX · record.json · timestamp
read the original abstract
We develop a new 3+1 dimensional Monte Carlo cascade solving the kinetic on-shell Boltzmann equations for partons including the inelastic gg <-> ggg pQCD processes. The back reaction channel is treated -- for the first time -- fully consistently within this scheme. An extended stochastic method is used to solve the collision integral. The frame dependence and convergency are studied for a fixed tube with thermal initial conditions. The detailed numerical analysis shows that the stochastic method is fully covariant and that convergency is achieved more efficiently than within a standard geometrical formulation of the collision term, especially for high gluon interaction rates. The cascade is then applied to simulate parton evolution and to investigate thermalization of gluons for a central Au+Au collision at RHIC energy. For this study the initial conditions are assumed to be generated by independent minijets with p_T > p_0=2 GeV. With that choice it is demonstrated that overall kinetic equilibration is driven mainly by the inelastic processes and is achieved on a scale of 1 fm/c. The further evolution of the expanding gluonic matter in the central region then shows almost an ideal hydrodynamical behavior. In addition, full chemical equilibration of the gluons follows on a longer timescale of about 3 fm/c.
Forward citations
Cited by 7 Pith papers
-
Bulk viscosity of a binary mixture: the role of the intra-species interaction
Derives second-order Chapman-Enskog bulk viscosity for binary mixtures showing improved physical properties and agreement with Green-Kubo.
-
Collective dynamics in heavy and light-ion collisions -- I) Kinetic Theory vs. Hydrodynamics
Event-by-event simulations show elliptic flow in heavy and light ion collisions follows a universal opacity-dependent response curve; hydrodynamics is accurate only above opacity around 3, and oxygen collisions expose...
-
Analytical Solution of the Nonlinear Relativistic Boltzmann Equation
An exact analytical BKW-like solution is derived for the nonlinear relativistic Boltzmann equation with momentum-independent, angle-dependent scattering, yielding a simple relaxation equation for the effective temperature.
-
A Brief Introduction to PACIAE 4.0
PACIAE 4.0 is a new public release of an event generator that adds PYTHIA 8.3 support, heavy-quark mass corrections, an improved coalescence model, and new hadron channels, but no validation is shown.
-
Chemical Equilibration and Thermalization of Quark-Gluon Plasma in a Parton Cascade Model with 2-to-3 Quark Interactions
Box and expanding simulations with SMASH extended to 2-to-3 quark processes show energy spectrum thermalizes by ~0.2 fm/c, momentum isotropizes by ~2 fm/c, but chemical equilibration remains incomplete by 5 fm/c and h...
-
Magnetized bottom-up thermalization in heavy-ion collisions
Strong magnetic fields may accelerate early quark production via gluon decay in the bottom-up scenario when |eB| approaches Q_s^2, modifying pre-equilibrium chemical composition.
-
QGP@50: More than Four Decades of Jet Quenching
A historical and technical review of jet quenching in heavy-ion collisions, covering four decades of theory, the RHIC discovery, and modern Bayesian extractions of the jet transport parameter qhat.
Discussion (0). Continue with ORCID to comment.