Momentum anisotropy at freeze out - INSPIRE

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Momentum anisotropy at freeze out

Apr 25, 2017

4 pages

Part of Proceedings, Hot Quarks 2016: Workshop for Young Scientists on the Physics of Ultrarelativistic Nucleus-Nucleus Collisions (HQ2016) : South Padre Island, Texas, September 12-17, 2016

Published in:

J.Phys.Conf.Ser. 832 (2017) 1, 012053

Contribution to:

- HQ2016

Published: Apr 25, 2017

DOI:

10.1088/1742-6596/832/1/012053

reference search1 citation

Citations per year

Abstract: (IOP)

The transition from a hydrodynamical modeling to a particle-based approach is a crucial element of the description of high-energy heavy-ion collisions. 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 use of anisotropic hydrodynamics for the last stages of the fluid evolution. We discuss how 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.

hydrodynamics: anisotropy
momentum: anisotropy
freeze-out: temperature
heavy ion: scattering
energy: high
phase space
distribution function
asymmetry
fluid

References(6)

Figures(0)

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