# Heavy resonances at energy-frontier hadron colliders

## TL;DR

This paper assesses the discovery potential of future hadron colliders like FCC-hh and HE-LHC for detecting new heavy resonances decaying into leptons, jets, tops, or W/Z bosons, and compares their capabilities.

## Contribution

It provides a detailed analysis of the physics reach and model discrimination potential of FCC-hh and HE-LHC for new heavy resonances, extending current collider studies.

## Key findings

- FCC-hh and HE-LHC can discover new heavy resonances up to multi-TeV scales.
- The study shows the potential to distinguish between different theoretical models of new particles.
- Projected exclusion limits improve significantly over current collider capabilities.

## Abstract

This paper explores the physics reach of the proton-proton Future Circular Collider (FCC-hh) and of the High-Energy LHC (HE-LHC) for searches of new particles produced in the $s$-channel and decaying to two high-energy leptons, jets (non-tops), tops or W/Z bosons. We discuss the expected discovery potential and exclusion limits for benchmark models predicting new massive particles that result in resonant structures in the invariant mass spectrum. We also present a detailed study of the HE-LHC potential to discriminate among different models, for a $Z'$ that could be discovered by the end of High-Luminosity LHC (HL-LHC).