Sep 3 – 9, 2023
Hilton of the Americas, 1600 Lamar, Houston, Texas, 77010, USA
US/Central timezone

Extending the fluid dynamic description of heavy-ions collisions to times before the collision

Sep 5, 2023, 5:30 PM
2h 10m
Grand Ballroom, 4th floor ( Hilton of the Americas)

Grand Ballroom, 4th floor

Hilton of the Americas

Poster New theoretical developments Poster Session

Speaker

Andreas Kirchner (ITP Heidelberg)

Description

It is well established that the late states of a high energy nuclear collision can be described in terms of relativistic fluid dynamics. An open problem in this context is how the actual collision and the early time dynamics directly after it can be described. Phenomenological models are currently employed here and they have several parameters that need to be fitted to experimental data.
Using relativistic fluid dynamics of second order we develop a new approach which addresses the entire collision event, and which gets initialized in fact already before the collision. This is based on the droplet model for the incoming nuclei and a state-the-art equation of state including the first-order liquid-gas phase transition. The physics picture we propose assumes that the soft features of a high energy nuclear collision can be fully described through the dynamics of the energy-momentum tensor and other conserved currents.

This work is part of and supported by the DFG Collaborative Research Centre "SFB 1225 (ISOQUANT)".

Category Theory

Authors

Dr Alaric Erschfeld (TPI Jena) Andreas Kirchner (ITP Heidelberg) Dr Eduardo Grossi (Dipartimento di fisica e astronomia, Universita di Firenze and INFN Sezione di Firenze) Ms Federica Capellino (Universtiy Heidelberg) Prof. Stefan Floerchinger (TPI Jena)

Presentation materials