Scaling behavior of anisotropic flow harmonics in the far from equilibrium regime

Nicolas Borghini (Fakultät für Physik, Universität Bielefeld, Bielefeld, 33501, Germany) ; Steffen Feld (Fakultät für Physik, Universität Bielefeld, Bielefeld, 33501, Germany) ; Nina Kersting (Fakultät für Physik, Universität Bielefeld, Bielefeld, 33501, Germany)

We consider the development of anisotropic flow in an expanding system of particles undergoing very few rescatterings, using a kinetic-theoretical description with a nonlinear collision term. We derive the scaling behaviors of the harmonic coefficients $$v_n$$ vn with the initial-state eccentricities and the mean number of rescatterings, and argue that hexagonal flow $$v_6$$ v6 should follow a nontrivial behavior, different from that of the lower harmonics. Our findings should be observable in experimental data for small systems.

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Published on:
13 November 2018
Publisher:
Springer
Published in:
European Physical Journal C , Volume 78 (2018)
Issue 10
Pages 1-6
DOI:
https://doi.org/10.1140/epjc/s10052-018-6313-z
Copyrights:
The Author(s)
Licence:
CC-BY-4.0

Fulltext files: