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| Autori principali: | , , |
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| Natura: | Preprint |
| Pubblicazione: |
2023
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| Soggetti: | |
| Accesso online: | https://arxiv.org/abs/2312.04274 |
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| _version_ | 1866929238639116288 |
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| author | Werthmann, Clemens Ambruş, Victor E. Schlichting, Sören |
| author_facet | Werthmann, Clemens Ambruş, Victor E. Schlichting, Sören |
| contents | We simulate the space-time dynamics of high-energy collisions based on a microscopic kinetic description, in order to determine the range of applicability of an effective description in relativistic viscous hydrodynamics. We find that hydrodynamics provides a quantitatively accurate description of collective flow when the average inverse Reynolds number is sufficiently small and the early pre-equilibrium stage is properly accounted for. By determining the breakdown of hydrodynamics as a function of system size and energy, we find that it is quantitatively accurate in central lead-lead collisions at LHC energies, but should not be used in typical proton-lead or proton-proton collisions, where the development of collective flow cannot accurately be described within hydrodynamics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_04274 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Establishing the Range of Applicability of Hydrodynamics in High-Energy Collisions Werthmann, Clemens Ambruş, Victor E. Schlichting, Sören High Energy Physics - Phenomenology We simulate the space-time dynamics of high-energy collisions based on a microscopic kinetic description, in order to determine the range of applicability of an effective description in relativistic viscous hydrodynamics. We find that hydrodynamics provides a quantitatively accurate description of collective flow when the average inverse Reynolds number is sufficiently small and the early pre-equilibrium stage is properly accounted for. By determining the breakdown of hydrodynamics as a function of system size and energy, we find that it is quantitatively accurate in central lead-lead collisions at LHC energies, but should not be used in typical proton-lead or proton-proton collisions, where the development of collective flow cannot accurately be described within hydrodynamics. |
| title | Establishing the Range of Applicability of Hydrodynamics in High-Energy Collisions |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2312.04274 |