| Article | |
| Report number | arXiv:1908.02866 ; INT-PUB-19-036 |
| Title | Hydrodynamic attractors, initial state energy and particle production in relativistic nuclear collisions |
| Author(s) | Giacalone, Giuliano (IPhT, Saclay) ; Mazeliauskas, Aleksas (Heidelberg U. ; CERN) ; Schlichting, Sören (Bielefeld U.) |
| Publication | 2019-12-31 |
| Imprint | 2019-08-07 |
| Number of pages | 7 |
| Note | 7 pages, 3 figures; v2: minor corrections, published version, plot scripts and data shown in figures are available at https://doi.org/10.4119/unibi/2939684 v3: included supplemental material |
| In: | Phys. Rev. Lett. 123 (2019) 262301 |
| DOI | 10.1103/PhysRevLett.123.262301 |
| Subject category | Nuclear Physics - Experiment ; Particle Physics - Phenomenology ; Nuclear Physics - Theory |
| Abstract | 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. |
| Copyright/License | publication: © 2019-2025 authors (License: CC BY 4.0) preprint: (Licenses: arXiv nonexclusive-distrib 1.0, CC BY 4.0) |
Corresponding record in: Inspire
Record created 2022-07-14, last modified 2024-05-08
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