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

Kurkela A, Mazeliauskas A, Paquet J-F, Schlichting S, Teaney D (2019)
PHYSICAL REVIEW LETTERS 122(12): 122302.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Autor/in
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Einrichtung
Abstract / Bemerkung
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 approach can be easily incorporated into existing hydrodynamic simulations, leading to stronger constraints on the energy density at early times and the transport properties of the QCD medium. Based on (conformal) scaling properties of the Green's functions, we further obtain pragmatic bounds for the applicability of hydrodynamics in nuclear collisions.
Erscheinungsjahr
Zeitschriftentitel
PHYSICAL REVIEW LETTERS
Band
122
Ausgabe
12
Art.-Nr.
122302
ISSN
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### Zitieren

Kurkela A, Mazeliauskas A, Paquet J-F, Schlichting S, Teaney D. Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory. PHYSICAL REVIEW LETTERS. 2019;122(12): 122302.
Kurkela, A., Mazeliauskas, A., Paquet, J. - F., Schlichting, S., & Teaney, D. (2019). Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory. PHYSICAL REVIEW LETTERS, 122(12), 122302. doi:10.1103/PhysRevLett.122.122302
Kurkela, A., Mazeliauskas, A., Paquet, J. - F., Schlichting, S., and Teaney, D. (2019). Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory. PHYSICAL REVIEW LETTERS 122:122302.
Kurkela, A., et al., 2019. Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory. PHYSICAL REVIEW LETTERS, 122(12): 122302.
A. Kurkela, et al., “Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory”, PHYSICAL REVIEW LETTERS, vol. 122, 2019, : 122302.
Kurkela, A., Mazeliauskas, A., Paquet, J.-F., Schlichting, S., Teaney, D.: Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory. PHYSICAL REVIEW LETTERS. 122, : 122302 (2019).
Kurkela, Aleksi, Mazeliauskas, Aleksas, Paquet, Jean-Francois, Schlichting, Sören, and Teaney, Derek. “Matching the Nonequilibrium Initial Stage of Heavy Ion Collisions to Hydrodynamics with QCD Kinetic Theory”. PHYSICAL REVIEW LETTERS 122.12 (2019): 122302.

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PMID: 30978049
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