Prescaling and far-from-equilibrium hydrodynamics in the quark-gluon plasma
Prescaling is a far-from-equilibrium phenomenon which describes the rapid establishment of a universal scaling form of distributions much before the universal values of their scaling exponents are realized. We consider the example of the spatiotemporal evolution of the quark-gluon plasma explored in...
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| Main Authors: | , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
26 March 2019
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| In: |
Physical review letters
Year: 2019, Volume: 122, Issue: 12 |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.122.122301 |
| Online Access: | Verlag, Volltext: https://doi.org/10.1103/PhysRevLett.122.122301 Verlag, Volltext: https://link.aps.org/doi/10.1103/PhysRevLett.122.122301 
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| Author Notes: | Aleksas Mazeliauskas and Jürgen Berges |
| Summary: | Prescaling is a far-from-equilibrium phenomenon which describes the rapid establishment of a universal scaling form of distributions much before the universal values of their scaling exponents are realized. We consider the example of the spatiotemporal evolution of the quark-gluon plasma explored in heavy-ion collisions at sufficiently high energies. Solving QCD kinetic theory with elastic and inelastic processes, we demonstrate that the gluon and quark distributions very quickly adapt a self-similar scaling form, which is independent of initial condition details and system parameters. The dynamics in the prescaling regime is then fully encoded in a few time-dependent scaling exponents, whose slow evolution gives rise to far-from-equilibrium hydrodynamic behavior. |
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| Item Description: | Gesehen am 30.07.2019 |
| Physical Description: | Online Resource |
| ISSN: | 1079-7114 |
| DOI: | 10.1103/PhysRevLett.122.122301 |