Electroweak spin-1 resonances in Composite Higgs models

TL;DR

This paper explores the phenomenology of spin-1 resonances predicted by Composite Higgs models with an SU(2)_L x SU(2)_R symmetry, showing they could be produced at the LHC with masses as low as 1.5 TeV.

Contribution

It provides a detailed analysis of the LHC signatures of electroweak spin-1 resonances in specific Composite Higgs models, identifying viable parameter space consistent with current data.

Findings

Resonances can be singly produced via Drell-Yan processes.

Masses of these resonances can be as low as 1.5 TeV.

Models remain compatible with existing LHC constraints.

Abstract

Composite Higgs models predict the existence of various bound states. Among these are spin-1 resonances. We investigate models containing $\text{SU(2)}_L\times \text{SU(2)}_R$ as part of the unbroken subgroup in the new strong sector. These models predict that there are two neutral and one charged spin-1 resonances mixing sizably with the SM vector bosons. As a consequence, these can be singly produced in Drell-Yan processes at the LHC. We explore their rich LHC phenomenology and show that there are still viable scenarios consistent with existing LHC data where the masses of these states can be as low as about 1.5 TeV.