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Collective flow in single-hit QCD kinetic theory

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arxiv 2104.08179 v2 pith:RQIO6QNV submitted 2021-04-16 hep-ph nucl-th

Collective flow in single-hit QCD kinetic theory

Aleksi Kurkela , Aleksas Mazeliauskas , Robin T\"ornkvist This is my paper
classification hep-ph nucl-th
keywords flowkineticsystemstheorycalculatedifferentharmonicinitial
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Motivated by recent interest in collectivity in small systems, we calculate the harmonic flow response to initial geometry deformations within weakly coupled QCD kinetic theory using the first correction to the free-streaming background. We derive a parametric scaling formula that relates harmonic flow in systems of different sizes and different generic initial gluon distributions. We comment on similarities and differences between the full QCD effective kinetic theory and the toy models used previously. Finally we calculate the centrality dependence of the integrated elliptic flow $v_2$ in oxygen-oxygen, proton-lead and proton-proton collision systems.

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Cited by 3 Pith papers

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  1. Bayesian Constraints on Pre-Equilibrium Jet Quenching and Predictions for Oxygen Collisions

    hep-ph 2025-09 unverdicted novelty 7.0

    Bayesian constraints on early-time jet quenching from large collision systems yield predictions of measurable energy loss in oxygen-oxygen collisions.

  2. Azimuthal momentum isotropization in the Quark-Gluon Plasma thermalization

    hep-ph 2026-07 conditional novelty 6.0

    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.

  3. Minijet thermalization and jet transport coefficients in QCD kinetic theory

    hep-ph 2025-10 unverdicted novelty 5.0

    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.