$\mathbf{Z^\prime}$-boson dilepton searches and the high-$\mathbf{x}$ quark density

TL;DR

This paper investigates how uncertainties in high-x quark densities affect LHC searches for Z'-bosons in dilepton channels, highlighting the importance of precise parton distribution functions for new physics detection.

Contribution

It introduces a method to evaluate the impact of quark density uncertainties on Z'-boson search observables at the LHC, focusing on high-x behavior.

Findings

Quark density uncertainties significantly influence Z'-boson search sensitivities.

The approach highlights the importance of accurate PDFs in dilepton channel analyses.

Results suggest potential shifts in exclusion limits due to systematic uncertainties.

Abstract

We study the influence of theoretical systematic uncertainties due to the quark density on LHC experimental searches for $Z^\prime$-bosons. Using an approach originally proposed in the context of the ABMP16 PDF set for the high-$x$ behaviour of the quark density, we presents results on observables commonly used to study $Z^\prime$ signals in dilepton channels.