We review the theory and phenomenology of isosinglet vector-like quarks (VLQs). In recent
years, interest in VLQs has been increasing, due to their contributions to new physics effects …

A combination of the searches for pair-produced vectorlike partners of the top and bottom
quarks in various decay channels (T→ Z t/W b/H t, B→ Z b/W t/H b) is performed using 36.1 …

In this article, I review scenarios of physics beyond the Standard Model in which the top
quark plays a special role. Models that aim at the stabilization of the weak scale are …

A bstract A search is presented for pair production of heavy vector-like T and B quarks in
proton-proton collisions at\(\sqrt {s}= 13\) TeV. The data sample corresponds to an integrated …

A bstract Results are presented from a search for physics beyond the standard model in
proton-proton collisions at\(\sqrt {s}\)= 13 TeV in channels with two Higgs bosons, each …

A search for the pair-production of vector-like quarks optimized for decays into a Z boson
and a third-generation Standard Model quark is presented, using the full Run 2 dataset …

In this Letter, we propose a simple model that can provide a combined explanation of the
Z→ bb¯ forward-backward asymmetry, the Cabibbo angle anomaly (CAA), τ→ μ ν ν and b→ …

A bstract We provide a comprehensive discussion, together with a complete setup for
simulations, relevant for the production of a single vector-like quark at hadron colliders. Our …

A search for pair-produced vector-like quarks using events with exactly one lepton (e or μ),
at least four jets including at least one b-tagged jet, and large missing transverse momentum …

A bstract This paper describes a search for the single production of an up-type vector-like
quark (T) decaying as T→ Ht or T→ Zt. The search utilises a dataset of pp collisions at\(\sqrt …