# 10th International Conference on Hard and Electromagnetic Probes of High-Energy Nuclear Collisions

May 31, 2020 to June 5, 2020
Online
US/Central timezone

## Jet quenching in the hadron gas: an exploratory study

Jun 4, 2020, 10:35 AM
20m
https://cern.zoom.us/j/91925285406

#### https://cern.zoom.us/j/91925285406

Oral Presentation Jets and High Momentum Hadrons

Hannah Elfner

### Description

The suppression of high momentum particles in heavy-ion collisions in comparison to elementary reactions is one of the main indications for the formation of a quark-gluon plasma. In recent studies, full jets are being reconstructed and substructure observables are gaining importance in assessing the medium modifications of hard probes. In this work, the effect of the late stage hadronic interactions are explored within the hadronic transport approach SMASH (Simulating Many Accelerated Strongly-interacting Hadrons)[1]. High momentum particles are incorporated in a radially expanding hadron gas to analyse the corresponding angular distributions, also referred to as ‘jet shape’ observables. We find that the full hadron gas can be approximated with a pion gas with constant elastic cross-sections of 100 mb. In addition, the temperature and probe energy dependence of diffusion coefficients $\tilde{q}$ and $\tilde{e}$ quantifying the transverse and parallel momentum transfers are extracted. The species dependence and the importance of different interaction types are investigated. Parametrizations are presented that can be employed in future jet quenching calculations to include the effect of the hadronic phase.

[1] P. Dorau, J.-B. Rose, D. Pablos and H. Elfner, arxiv:1910.07027

Track Jets and High Momentum Hadrons Contributed Talk

### Co-authors

Dr Daniel Pablos (University of Bergen)

### Presentation materials

 Elfner_HP2020.pdf Recording