Experimental status of top charge asymmetry measurements

TL;DR

This paper reviews recent measurements of top quark charge asymmetries at Tevatron and LHC, highlighting tensions with the Standard Model at Tevatron and compatibility at LHC.

Contribution

It provides a comprehensive overview of the current experimental status of top charge asymmetry measurements across different colliders.

Findings

Tevatron $A_{FB}$ measurements show some tension with the Standard Model.

LHC $A_C$ measurements are consistent with Standard Model predictions.

The review summarizes the progress and discrepancies in top charge asymmetry experiments.

Abstract

The latest measurements of the asymmetry in the angular distributions of the $t\bar{t}$ events are reviewed. The measurements of the forward-backward asymmetry $A_{FB}$ in the $p\bar{p}$ 1.98 TeV collision at the Tevatron show some tension with the standard model calculation, while results of the measurements of the charge asymmetry $A_C$ in $pp$ collisions at 7 TeV and 8 TeV at the LHC are compatible with standard model prediction.