Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers

Borghini N, Borrell Martinez M, Roch H (2022)
European Physical Journal C, The : Particles and Fields 82(10): 961.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
We investigate the early time development of the anisotropic transverse flow and spatial eccentricities of a fireball with various particle-based transport approaches using a fixed initial condition. In numerical simulations ranging from the quasi-collisionless case to the hydrodynamic regime, we find that the onset of vn and of related measures of anisotropic flow can be described with a simple power-law ansatz, with an exponent that depends on the amount of rescatterings in the system. In the few-rescatterings regime we perform semi-analytical calculations, based on a systematic expansion in powers of time and the cross section, which can reproduce the numerical findings.
Erscheinungsjahr
2022
Zeitschriftentitel
European Physical Journal C, The : Particles and Fields
Band
82
Ausgabe
10
Art.-Nr.
961
ISSN
1434-6044
eISSN
1434-6052
Page URI
https://pub.uni-bielefeld.de/record/2963719

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Borghini N, Borrell Martinez M, Roch H. Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. European Physical Journal C, The : Particles and Fields. 2022;82(10): 961.
Borghini, N., Borrell Martinez, M., & Roch, H. (2022). Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. European Physical Journal C, The : Particles and Fields, 82(10), 961. https://doi.org/10.1140/epjc/s10052-022-10914-9
Borghini, Nicolas, Borrell Martinez, Marc, and Roch, Hendrik. 2022. “Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers”. European Physical Journal C, The : Particles and Fields 82 (10): 961.
Borghini, N., Borrell Martinez, M., and Roch, H. (2022). Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. European Physical Journal C, The : Particles and Fields 82:961.
Borghini, N., Borrell Martinez, M., & Roch, H., 2022. Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. European Physical Journal C, The : Particles and Fields, 82(10): 961.
N. Borghini, M. Borrell Martinez, and H. Roch, “Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers”, European Physical Journal C, The : Particles and Fields, vol. 82, 2022, : 961.
Borghini, N., Borrell Martinez, M., Roch, H.: Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers. European Physical Journal C, The : Particles and Fields. 82, : 961 (2022).
Borghini, Nicolas, Borrell Martinez, Marc, and Roch, Hendrik. “Early time behavior of spatial and momentum anisotropies in kinetic theory across different Knudsen numbers”. European Physical Journal C, The : Particles and Fields 82.10 (2022): 961.
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arXiv: 2201.13294

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