Gauge theories of Partial Compositeness: Scenarios for Run-II of the LHC

TL;DR

This paper explores gauge theories where the Higgs is a pseudo-Nambu-Goldstone boson and top-partners are bound states, analyzing their symmetry breaking patterns, couplings, and potential experimental signatures at the LHC.

Contribution

It provides a comprehensive analysis of symmetry breaking, couplings, and phenomenology of gauge theories with pNGB Higgs and top-partners, including models with accessible additional pNGBs at the LHC.

Findings

All models predict additional pNGBs detectable at LHC.

Vacuum misalignment and pNGB masses are generated by loop effects.

Qualitative predictions of experimental signatures for future searches.

Abstract

We continue our investigation of gauge theories in which the Higgs boson arises as a pseudo-Nambu-Goldstone boson (pNGB) and top-partners arise as bound states of three hyperfermions. All models have additional pNGBs in their spectrum that should be accessible at LHC. We analyze the patterns of symmetry breaking and present all relevant couplings of the pNGBs with the gauge fields. We discuss how vacuum misalignment and a mass for the pNGBs is generated by a loop-induced potential. Finally, we paint a very broad, qualitative, picture of the kind of experimental signatures these models give rise to, setting the stage for further analysis.