Modelling vector-like quarks in partial compositeness framework

Composite Higgs models, together with partial compositeness, predict the existence of new scalars and vector-like quarks (partners) at above TeV scale. Generically, presence these additional opens up decay topologies for partners. In this paper we show how to systematically construct general low energy Lagrangian capture feature. We emphasize specific pattern in top-partner spectrum arising class models. then present a concrete realization context SU(5)/SO(5) coset. that top-partners model can have significant branching ratios third generation quark, compared usual Standard Model channels. Amongst most promising signatures LHC are final states containing diphoton resonance along top quark.