Phenomenology of electroweak spin-1 resonances

Abstract

Composite Higgs models with a fermionic UV completion predict the existence of various bound states. We investigate models containing SU(2)${}_L\times$SU(2)${}_R$ as part of the unbroken global subgroup in the new strong sector. These models predict that there are two neutral and one charged spin-1 resonances mixing seizable with the SM vector bosons. These can be singly produced at the LHC. We explore their LHC phenomenology and demonstrate 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.

Comments: 15 pages, 5 figures, contribution to the Proceedings of the Corfu Summer Institute 2025 "School and Workshops on Elementary Particle Physics and Gravity" (CORFU2025)