14–18 Nov 2022
NH Hotel Bingen
Europe/Berlin timezone
Source: City of Bingen, Photo: Dominik Ketz

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

18 Nov 2022, 09:30
20m
NH Hotel Bingen

NH Hotel Bingen

Am Rhein Nahe Eck/Museumstrasse 3 55411 Bingen am Rhein Germany Phone: +49 6721 7960 www.nh-hotels.de/hotel/nh-bingen nhbingen@nh-hotels.com
CONTRIBUTED TALK (25min +5) Afternoon session

Speaker

Mr 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)".

Affiliation ITP Heidelberg
Financial Support I apply for financial support (student application)

Primary authors

Mr Andreas Kirchner (ITP Heidelberg) Mrs Federica Capellino (University Heidelberg) Dr Alaric Erschfeld (TPI Jena) Prof. Stefan Floerchinger (TPI Jena) Dr Eduardo Grossi ( IPhT, Saclay and Ecole Polytechnique, CPHT)

Presentation materials