Search for heavy resonances decaying to top and vector-like quarks in the all-hadronic channel at $\sqrt{s} = 13~\mathrm{TeV}$

Many models predicting a heavy neutral spin-1 resonance also predict the existence of vector-like quarks. Such a hypothetical resonance might then predominantly decay to these heavy quark partners rather than to standard model particles. We present a search for a new heavy spin-1 resonance (Z' boson) decaying to a top quark and a heavy vector-like top partner (T'). The analysis is tailored to the final state where the T' decays to a W boson and a b quark. We focus on all-hadronic final states, where both the associated top quark and the W boson from the T' decay in turn decay hadronically. The decay products of the top quark and the W boson are highly boosted and cannot be reconstructed as separate jets. These decays are instead reconstructed as single wide jets. Jet substructure techniques and b-tagging identification are used to identify these wide jets as top quark and vector boson candidates.