New parton-shower algorithm that exactly reproduces linearized EKT dynamics for jet thermalization including recoils, holes, quantum statistics and merging.
Minijet quenching in non-equilibrium quark-gluon plasma
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abstract
We study the energy deposition and thermalisation of high-momentum on-shell partons (minijets) travelling through a non-equilibrium Quark-Gluon Plasma using QCD kinetic theory. For thermal backgrounds, we show that the parton energy first flows to the soft sector by collinear cascade and then isotropises via elastic scatterings. In contrast, the momentum deposition from a minijet reaches the equilibrium distribution directly. For expanding non-equilibrium QGP, we study the time for a minijet perturbation to lose memory of its initial conditions, namely, the hydrodynamisation time. We show that the minijet evolution scales well with the relaxation time ${\tau}_R \propto {\eta}/s/T ({\tau} )$, where $T ({\tau} )$ is the effective temperature and ${\eta}/s$ is the viscosity over entropy ratio.
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hep-ph 3representative citing papers
BEDA kinetic evolution washes out initial azimuthal anisotropies with higher harmonics relaxing faster and shifts the pT peak of vn upward, qualitatively matching small-system data.
Minijet thermalization time in a thermal gluon plasma scales with the jet quenching parameter q-hat once recoiling medium contributions are added to standard transport coefficient definitions.
citing papers explorer
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Deriving a parton shower for jet thermalization in QCD plasmas
New parton-shower algorithm that exactly reproduces linearized EKT dynamics for jet thermalization including recoils, holes, quantum statistics and merging.
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Azimuthal momentum isotropization in the Quark-Gluon Plasma thermalization
BEDA kinetic evolution washes out initial azimuthal anisotropies with higher harmonics relaxing faster and shifts the pT peak of vn upward, qualitatively matching small-system data.
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Minijet thermalization and jet transport coefficients in QCD kinetic theory
Minijet thermalization time in a thermal gluon plasma scales with the jet quenching parameter q-hat once recoiling medium contributions are added to standard transport coefficient definitions.