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Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions
We exploit the concept of hydrodynamic attractors to establish a macroscopic description of the early time out-of-equilibrium dynamics of high energy heavy-ion collisions. One direct consequence is a general relation between the initial state energy and the produced particle multiplicities measured...
Autores principales: | , , |
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Lenguaje: | eng |
Publicado: |
2019
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Materias: | |
Acceso en línea: | https://dx.doi.org/10.1103/PhysRevLett.123.262301 http://cds.cern.ch/record/2815727 |
_version_ | 1780973535118753792 |
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author | Giacalone, Giuliano Mazeliauskas, Aleksas Schlichting, Sören |
author_facet | Giacalone, Giuliano Mazeliauskas, Aleksas Schlichting, Sören |
author_sort | Giacalone, Giuliano |
collection | CERN |
description | We exploit the concept of hydrodynamic attractors to establish a macroscopic description of the early time out-of-equilibrium dynamics of high energy heavy-ion collisions. One direct consequence is a general relation between the initial state energy and the produced particle multiplicities measured in experiments. When combined with an ab initio model of energy deposition, the entropy production during the preequilibrium phase naturally explains the universal centrality dependence of the measured charged particle yields in nucleus-nucleus collisions. Further, we estimate the energy density of the far-from-equilibrium initial state and discuss how our results can be used to constrain nonequilibrium properties of the quark-gluon plasma. |
id | cern-2815727 |
institution | Organización Europea para la Investigación Nuclear |
language | eng |
publishDate | 2019 |
record_format | invenio |
spelling | cern-28157272022-07-22T13:34:18Zdoi:10.1103/PhysRevLett.123.262301http://cds.cern.ch/record/2815727engGiacalone, GiulianoMazeliauskas, AleksasSchlichting, SörenHydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisionsNuclear Physics - ExperimentParticle Physics - PhenomenologyNuclear Physics - TheoryWe exploit the concept of hydrodynamic attractors to establish a macroscopic description of the early time out-of-equilibrium dynamics of high energy heavy-ion collisions. One direct consequence is a general relation between the initial state energy and the produced particle multiplicities measured in experiments. When combined with an ab initio model of energy deposition, the entropy production during the preequilibrium phase naturally explains the universal centrality dependence of the measured charged particle yields in nucleus-nucleus collisions. Further, we estimate the energy density of the far-from-equilibrium initial state and discuss how our results can be used to constrain nonequilibrium properties of the quark-gluon plasma.We exploit the concept of hydrodynamic attractors to establish a general relation between the initial state energy and the produced particle multiplicities in high-energy nuclear collisions. When combined with an ab initio model of energy deposition, the entropy production during the pre-equilibrium phase naturally explains the universal centrality dependence of the measured charged particle yields in nucleus-nucleus collisions. We further estimate the energy density of the far-from-equilibrium initial state and discuss how our results can be used to constrain non-equilibrium properties of the quark-gluon plasma.arXiv:1908.02866INT-PUB-19-036oai:cds.cern.ch:28157272019-08-07 |
spellingShingle | Nuclear Physics - Experiment Particle Physics - Phenomenology Nuclear Physics - Theory Giacalone, Giuliano Mazeliauskas, Aleksas Schlichting, Sören Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
title | Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
title_full | Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
title_fullStr | Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
title_full_unstemmed | Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
title_short | Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
title_sort | hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
topic | Nuclear Physics - Experiment Particle Physics - Phenomenology Nuclear Physics - Theory |
url | https://dx.doi.org/10.1103/PhysRevLett.123.262301 http://cds.cern.ch/record/2815727 |
work_keys_str_mv | AT giacalonegiuliano hydrodynamicattractorsinitialstateenergyandparticleproductioninrelativisticnuclearcollisions AT mazeliauskasaleksas hydrodynamicattractorsinitialstateenergyandparticleproductioninrelativisticnuclearcollisions AT schlichtingsoren hydrodynamicattractorsinitialstateenergyandparticleproductioninrelativisticnuclearcollisions |