Jet substructure has emerged to play a central role at the Large Hadron Collider, where it
has provided numerous innovative ways to search for new physics and to probe the …

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 …

At the CERN LHC [1], an efficient classification of hadronic decays of heavy standard-model
(SM) particles (objects) that are reconstructed within a single jet would provide a significant …

A bstract A search for new-physics resonances decaying into a lepton and a jet performed
by the ATLAS experiment is presented. Scalar leptoquarks pair-produced in pp collisions …

A search for vectorlike quarks is presented, which targets their decay into a Z boson and a
third-generation Standard Model quark. In the case of a vectorlike quark T (B) with charge+ …

A search is made for a vector-like $ T $ quark decaying into a Higgs boson and a top quark
in 13 TeV proton-proton collisions using the ATLAS detector at the Large Hadron Collider …

A search is presented for single production of a vector-like quark (T) decaying to a Z boson
and a top quark, with the Z boson decaying leptonically and the top quark decaying …

A bstract New particles beyond the Standard Model might be produced with a very high
boost, for instance if they result from the decay of a heavier particle. If the former decay …

A bstract The measured B-meson semi-leptonic branching ratios RD and\({R} _ {D^{*}}\)
have long-standing deviations between theory and experiment. We introduce a model which …

A bstract This paper describes a search for events with one top-quark and large missing
transverse momentum in the final state. Data collected during 2015 and 2016 by the ATLAS …