Asymmetric Leptons for Asymmetric Tops

TL;DR

This paper introduces a novel approach to detect models producing like-sign top events at the LHC by analyzing single lepton charge asymmetry, demonstrated on a Z' model explaining Tevatron asymmetry.

Contribution

It presents an efficient method based on single lepton charge asymmetry to explore like-sign top production models, improving detection prospects over traditional dilepton methods.

Findings

Large parameter space of the Z' model can be tested with existing LHC data.

The method is more efficient than traditional like-sign dilepton searches.

Potential to discover new physics related to top quark asymmetries.

Abstract

We propose an efficient method to explore models which which produce like-sign tops at the LHC, using the total charge asymmetry of single lepton events instead of like-sign dileptons. As an example, the method is implemented on a Z' Model, which can explain the top pair forward-backward asymmetry at Tevatron. We show that a large region of the parameter space of this model can be reached using the existing data set at the LHC.