Hydrodynamic flow in small systems or: "How the heck is it possible that a system emitting only a dozen particles can be described by fluid dynamics?"

The "unreasonable effectiveness" of relativistic fluid dynamics in describing high energy heavy-ion and even proton-proton collisions will be demonstrated and discussed. Several recent ideas of optimizing relativistic fluid dynamics for the specific challenges posed by such collisions will...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 1271; no. 1; pp. 12018 - 12027
Main Authors Heinz, Ulrich, Scott Moreland, J.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.07.2019
Subjects
Fluid dynamics
Fluid flow
Heavy ions
Hydrodynamics
NUCLEAR PHYSICS AND RADIATION PHYSICS
Particle collisions
Physics
Protons
Relativistic effects
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Summary:The "unreasonable effectiveness" of relativistic fluid dynamics in describing high energy heavy-ion and even proton-proton collisions will be demonstrated and discussed. Several recent ideas of optimizing relativistic fluid dynamics for the specific challenges posed by such collisions will be presented, and some thoughts will be offered why the framework works better than originally expected. I will also address the unresolved question where exactly hydrodynamics breaks down, and why.
Bibliography:SC0004286
USDOE Office of Science (SC), Nuclear Physics (NP)
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1271/1/012018