# Propagation of QCD Color through Strongly Interacting Systems

## TL;DR

This paper investigates how QCD color propagates through atomic nuclei by analyzing semi-inclusive deep inelastic scattering data to estimate key parameters like color lifetime and quark energy loss.

## Contribution

It introduces a new simultaneous fitting method for multiple observables to extract fundamental properties of color propagation in nuclear matter.

## Key findings

- Estimated quark color lifetime and energy loss parameters.
- Determined the transport coefficient $t{q}$ for the medium.
- Provided preliminary results for the hadronic interaction cross section.

## Abstract

The propagation of QCD color through atomic nuclei is studied via a new analysis using a geometric model of semi-inclusive deep inelastic scattering. The experimental data were previously published by the HERMES Collaboration and consisted of the multiplicity ratio observable (2007) and the transverse momentum broadening observable (2010). We perform a simultaneous fit of these two observables to estimate (1) the color lifetime of the quark, (2) quark energy loss, (3) the $\hat{q}$ transport coefficient, and (4) the cross section for hadronic interaction with the medium. We present preliminary results for this fit.