München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 46: Hauptvorträge IV

HK 46.1: Hauptvortrag

Donnerstag, 21. März 2019, 11:00–11:35, Plenarsaal

Non-equilibrium dynamics in high-energy Heavy-Ion collisions — •Soeren Schlichting — Universität Bielefeld, Bielefeld, Germany

Heavy-ion collision experiments at the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC) have revealed exciting properties of the Quark-Gluon Plasma (QGP) -- a new state of hot and dense strong-interaction matter created in high-energy collisions. Strong collective phenomena observed in these collisions, suggest that the QGP behaves as a nearly ideal fluid for a significant part of its space-time evolution. Despite a successful phenomenology based on fluid dynamical descriptions of the QGP beyond time scales 1 fm/c, a first principles understanding of the emergence of fluid dynamical behavior in nucleus-nucleus (AA) collisions remains an outstanding challenge. Based on a general introduction, I will discuss recent theoretical progress in understanding the microscopic and macroscopic features of the early time non-equilibrium dynamics of heavy-ion collisions, which eventually lead to the formation of a fluid dynamic QGP.Besides applications to the dynamical description of nucleus-nucleus (AA) collisions, I will also discuss how these theoretical advances can be used to characterise the conditions for the formation of a QGP in hadronic collisions and quantify the importance of the non-equilibrium stage in smaller collision systems created in proton-nucleus (pA) and proton-proton (pp) collisions.