We introduce fundamental gauge theories that can be employed to construct informed
composite bright and dark extensions of the Standard Model, within and beyond 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 …

Half a century after its formulation, the Standard Model (SM) is by now the established theory
of Electro-Weak (EW) and Strong interactions, the discovery of the Higgs boson being the …

We obtain constraints on the mixing of vectorlike quarks coupling predominantly to the third
generation. We consider all (seven) relevant types of vectorlike quarks, individually. The …

A bstract We compute all the tree-level contributions to the Wilson coefficients of the
dimension-six Standard-Model effective theory in ultraviolet completions with general scalar …

A bstract We study a class of nonstandard interactions of the newly discovered 125 GeV
Higgs-like resonance that are especially interesting probes of new physics: flavor violating …

HEPfit is a flexible open-source tool which, given the Standard Model or any of its
extensions, allows to (i) fit the model parameters to a given set of experimental …

We simplify the general form of the fermion–fermion–gauge boson interactions generated by
dimension-six gauge-invariant effective operators by using the equations of motion to …

We systematically study the possible signals at LHC of new vector-like quarks mainly
coupled to the third generation. We consider heavy quarks T, B, X, Y of charges 2/3,-1/3, 5/3 …

We propose a model-independent and general framework to study the LHC phenomenology
of top partners, ie vector-like quarks including particles with different electromagnetic …