# 22nd MCnet Meeting

Apr 19 – 21, 2021
CERN
Europe/Zurich timezone

## Hadronic rescattering in pA and AA collisions

Apr 20, 2021, 2:50 PM
20m
Zoom

### Speaker

Marius Utheim (Lund University)

### Description

I have earlier presented a framework for hadronic rescattering Pythia in the context of pp collisions. In this talk, I will present the results from our recent paper where we have studied rescattering in pPb and PbPb collisions, using the Angantyr framework to generate heavy ion collisions. This will give a detailed view on how rescattering affects charged multiplicity and transverse momentum distributions, and where rescattering occurs in spacetime. We will see that rescattering gives rise to a significant $v_2$ flow coefficient, which describes PbPb data surprisingly well at high multiplicities. There is also a possible indication of jet quenching due to rescattering.

### Primary author

Marius Utheim (Lund University)

### Co-authors

Christian Bierlich (Lund University (SE))