May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Momentum anisotropy at freeze out

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Collective dynamics Poster Session


Steffen Feld (Universität Bielefeld)


The transition from a hydrodynamical modeling to a particle-based approach is a crucial element of the description of heavy-ion collisions at high energies. Assuming this "freeze out" happens instantaneously at each point of the expanding medium, we show that the local phase-space distribution of the emitted particles is asymmetric in momentum space. This suggests the relevance of anisotropic hydrodynamics for the last stages of the fluid evolution. We further discuss how finite-state observables depend on the amount of momentum-space anisotropy at freeze out and how smaller or larger anisotropies allow for different values of the freeze-out temperature.

Centralised submission by Collaboration Presenter name already specified
Content type Theory

Primary authors

Nicolas Borghini (University of Bielefeld) Steffen Feld (Universität Bielefeld)

Presentation materials