Multi-W Events at LHC from a Warped Extra Dimension with Custodial Symmetry

TL;DR

This paper investigates the potential to detect four-W boson final states at the LHC, originating from light Kaluza-Klein fermions predicted by Randall-Sundrum models with custodial symmetry, which could be accessible at current collider energies.

Contribution

It analyzes the detectability of specific multi-W final states from light Kaluza-Klein fermions in Randall-Sundrum models with custodial symmetry at the LHC.

Findings

Potential signals of light KK fermions in four-W final states.

Feasibility of detecting these signals at the LHC.

Implications for electroweak symmetry breaking models.

Abstract

Randall-Sundrum models based on SU(2)_L * SU(2)_R with custodial symmetry are compelling frameworks for building alternative models of electroweak symmetry breaking. A particular feature of these models is the likely presence of light Kaluza-Klein fermions related to the right-handed top quark. These can be as light as a few hundred GeV and still compatible with EW precision constraints. In this article, we study the detectability of four-W final states at the LHC, which arise from the pair-production and tW decay of light Kaluza-Klein bottom quarks as well as light Kaluza-Klein quarks carrying electric charge 5/3.