# On the direct determination of $\sin^2 \theta^\ell_{eff}$ at hadron colliders

## TL;DR

This paper explores a renormalization scheme for the electroweak Standard Model at 1-loop, focusing on directly determining the effective weak mixing angle from collider data, impacting predictions of the Drell-Yan process asymmetry.

## Contribution

It introduces a new input scheme for electroweak renormalization that enables direct extraction of the leptonic weak mixing angle from experimental measurements.

## Key findings

- The input scheme improves the prediction accuracy of the forward-backward asymmetry.
- It provides a practical method for directly measuring $ heta^ ext{eff}_ ext{lept}$ at hadron colliders.
- The scheme enhances the consistency of electroweak parameter determinations.

## Abstract

We discuss the renormalization of the electroweak Standard Model at 1-loop using the leptonic effective weak mixing angle as one of the input parameters. We evaluate the impact of this choice in the prediction of the forward-backward asymmetry for the neutral current Drell-Yan process. The proposed input scheme is suitable for a direct determination of the effective leptonic weak mixing angle from the experimental data.