Prescaling and far-from-equilibrium hydrodynamics in the quark-gluon plasma

• Verfasst von: Mazeliauskas, Aleksas [VerfasserIn]
• Verfasst von: Berges, Jürgen [VerfasserIn]
• Titel: Prescaling and far-from-equilibrium hydrodynamics in the quark-gluon plasma
• Verf.angabe: Aleksas Mazeliauskas and Jürgen Berges
• E-Jahr: 2019
• Jahr: 26 March 2019
• Umfang: 6 S.
• Fussnoten: Gesehen am 30.07.2019
• Titel Quelle: Enthalten in: Physical review letters
• Ort Quelle: College Park, Md. : APS, 1958
• Jahr Quelle: 2019
• Band/Heft Quelle: 122(2019,12) Artikel-Nummer 122301
• ISSN Quelle: 1079-7114
• DOI: doi:10.1103/PhysRevLett.122.122301
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: High Energy Physics - Phenomenology
• Sach-SW: Nuclear Theory
• K10plus-PPN: 1670237486

Abstract

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.