Exploring the sensitivity of hadron colliders to non-universality in heavy neutral currents

TL;DR

This paper projects the sensitivity of future colliders like HL-LHC and FCC-hh to discover heavy resonances decaying into electron and muon pairs, and to test lepton non-universality, considering detector efficiencies and resolutions.

Contribution

It provides detailed sensitivity projections for heavy resonance detection and lepton non-universality testing at future colliders, highlighting the importance of FCC-hh following HL-LHC.

Findings

Sensitivity projections for HL-LHC and FCC-hh for heavy resonance detection

Demonstration of how HL-LHC analyses inform FCC-hh capabilities

Assessment of detector efficiency and resolution impacts

Abstract

We present sensitivity projections for discovering a heavy resonance decaying to electron and muon pairs and for probing the charged lepton non-universality in such decays at the HL-LHC and FCC-hh. The analysis takes into account the expected differences in the reconstruction efficiencies and the dilepton mass resolutions for dielectron and dimuon final states. We demonstrate how the analyses at HL-LHC naturally paves the way for a FCC-hh machine thereby underlining its importance.