Orateur
Description
Composite Higgs theories with partial compositeness are gauge theories in which the Higgs boson arises as a pseudo Nambu Goldstone boson (pNGB), and top partners appear as bound states of three hyperfermions originating from a fermionic UV completion. These models offer a promising solution to the naturalness problem of the Higgs sector and predict additional pNGBs and vector-like baryons at or above the TeV scale.
In this talk, we consider models that, in addition to the usual colour triplet top partners, also predict sextet states.
We analyze their LHC phenomenology and, in particular, we show that pair production yields signatures containing up to eight top quarks.
Using recasts of existing LHC searches, we derive current constraints on their masses.