# Quark Matter 2019 - the XXVIIIth International Conference on Ultra-relativistic Nucleus-Nucleus Collisions

3-9 November 2019
Wanda Reign Wuhan Hotel
Asia/Shanghai timezone

## Evolving Charge Correlations and the Diffusivity of Light Quarks

4 Nov 2019, 17:40
20m
Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

#### Wanda Han Show Theatre & Wanda Reign Wuhan Hotel

Poster Presentation New theoretical developments

### Speaker

Christopher Plumberg

### Description

We present a full simulation of evolving charge correlations in heavy-ion collisions using a combination of hydrodynamics and a hadronic Boltzmann cascade to model the underlying system evolution. We compute the charge balance functions (CBFs) in both rapidity and azimuthal angle and observe their dependence on several phenomenological parameters in our model. In particular, we observe significant sensitivity in the $K^+K^-$ and $p\bar{p}$ CBFs to the value of the diffusivity of light quarks, suggesting that a comprehensive analysis of heavy-ion observables which includes the CBFs could be sensitive to this previously unmeasured transport coefficient of QCD matter.

### Primary authors

Scott Pratt (Michigan State University)