Neutral Current Interference in the TeV Region; the Experimental Sensitivity at the LHC

TL;DR

This paper explores how measuring lepton forward-backward asymmetries at the LHC for high-mass dilepton events can test the neutral current interference structure and probe new physics up to 2 TeV energies.

Contribution

It demonstrates the potential of LHC measurements of asymmetries to investigate neutral current interference and new physics scenarios such as quark compositeness and Z' models.

Findings

Asymmetry measurements can test neutral current interference up to 2 TeV.

LHC sensitivity to new physics like quark compositeness and Z' scenarios.

Potential for accurate tests of electroweak structure at high energies.

Abstract

The possibilities to measure lepton forward--backward asymmetries at the LHC in the reaction pp(qqbar) --> l+l- are studied for dilepton events with masses above 400 GeV. It is shown that such measurements allow accurate tests of the neutral current interference structure up to about 2 TeV center of mass energies. The sensitivity of asymmetries at the LHC to new physics is demonstrated within the context of quark compositeness and exotic Z' scenarios.