# Top-antitop charge asymmetry measurements in the dilepton channel with the ATLAS detector

## TL;DR

This paper reports a measurement of the top-antitop charge asymmetry in dilepton channels using ATLAS data, employing Bayesian unfolding to analyze inclusive and differential asymmetries at parton level.

## Contribution

It introduces a fully Bayesian unfolding method for measuring charge asymmetry in top quark pairs at the parton level in dilepton channels.

## Key findings

- Measured charge asymmetry values consistent with Standard Model predictions
- Performed differential asymmetry measurements across various kinematic variables
- Demonstrated the effectiveness of Bayesian unfolding in top quark analyses

## Abstract

We report a measurement of the charge asymmetry $A_C$ in top quark pair production with the ATLAS experiment. The measurement focuses on dilepton channels ($ee$, $e\mu$, $\mu\mu$). The data are unfolded to parton level at full phase space using a fully Bayesian unfolding method. Inclusive and differential measurements of the charge asymmetry are performed.