PIRSA:13110089

# Collisions in AdS and the thermalisation of heavy-ion collisions

### APA

van der Schee, W. (2013). Collisions in AdS and the thermalisation of heavy-ion collisions . Perimeter Institute. https://pirsa.org/13110089

### MLA

van der Schee, Wilke. Collisions in AdS and the thermalisation of heavy-ion collisions . Perimeter Institute, Nov. 28, 2013, https://pirsa.org/13110089

### BibTex

```          @misc{ pirsa_13110089,
doi = {},
url = {https://pirsa.org/13110089},
author = {van der Schee, Wilke},
keywords = {Strong Gravity},
language = {en},
title = {Collisions in AdS and the thermalisation of heavy-ion collisions },
publisher = {Perimeter Institute},
year = {2013},
month = {nov},
note = {PIRSA:13110089 see, \url{https://pirsa.org}}
}
```

## Abstract

The motivation of this seminar is to understand the thermalisation of heavy ion collisions using AdS/CFT. These collisions can be modelled as colliding planar gravitational shock waves. This gives rise to rich and interesting dynamics; wide shocks come to a full stop and expand hydrodynamically, as was previously found by Chesler and Yaffe. High energy collisions (corresponding to thin shocks) pass through each other, after which a plasma forms in the middle, within a proper time 1/T, with T the local temperature at that time. After this I will discuss recent results where we studied the influence of microscopic structure in the longitudinal direction of the shock waves, and thereby found a coherent regime. This has implications for both fluctuations in nucleus-nucleus collisions, and for recent proton-lead collisions at at LHC. The final part will cover a radially expanding calculation, where some simplifications allowed us to solve the model all the way till the final particle spectra, with an interesting comparison with experimental data.