Time-evolution of fluctuations as signal of the phase transition dynamics in a QCD-assisted transport approach

• Verfasst von: Bluhm, Marcus [VerfasserIn]
• Verfasst von: Pawlowski, Jan M. [VerfasserIn]
• Verfasst von: Rennecke, Fabian [VerfasserIn]
• Verfasst von: Wink, Nicolas [VerfasserIn]
• Titel: Time-evolution of fluctuations as signal of the phase transition dynamics in a QCD-assisted transport approach
• Verf.angabe: M. Bluhm, Y. Jiang, M. Nahrgang, J.M. Pawlowski, F. Rennecke, N. Wink
• E-Jahr: 2018
• Jahr: 3 Aug 2018
• Umfang: 4 S.
• Fussnoten: Gesehen am 14.12.2018
• Titel Quelle: Enthalten in: De.arxiv.org
• Ort Quelle: [S.l.] : Arxiv.org, 1991
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018), Artikel-ID 1808.01377
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: High Energy Physics - Phenomenology
• Sach-SW: High Energy Physics - Theory
• Sach-SW: Nuclear Theory
• K10plus-PPN: 158529618X

Abstract

For the understanding of fluctuation measurements in heavy-ion collisions it is crucial to develop quantitatively reliable dynamical descriptions which take the non-perturbative nature of QCD near the phase transition into account. We discuss a novel QCD-assisted transport approach based on non-equilibrium chiral fluid dynamics and the effective action of low energy QCD. In this framework, we study the time-evolution of fluctuation measures of the critical mode, notably the kurtosis, for a non-expanding system. From this, we can estimate the equilibration times of critical mode fluctuations in the QCD phase diagram. These allow us to identify both the phase boundary and the critical region near the QCD critical point.