Grand Unified Theories (GUTs) are one of the most interesting high-energy completions of
the Standard Model, because they provide a rich, powerful and elegant group-theoretical …

A bstract We propose an extension of the three-Higgs-doublet model (3HDM), where the
Standard Model (SM) particle content is enlarged by the inclusion of two inert SU 2L scalar …

A bstract In this paper, a model inspired by Grand Unification principles featuring three
generations of vector-like fermions, new Higgs doublets and a rich neutrino sector at the low …

We build a renormalizable theory where the inverse seesaw mechanism explains the
pattern of SM fermion masses. To the best of our knowledge, our model corresponds to the …

A bstract We propose an extension of the 3-3-1 model with an additional symmetry
group\({Z} _2\times {Z} _4\times\mathrm {U}{(1)} _ {L_g}\) and an extended scalar sector. To …

Multi-peaked spectra of the primordial gravitational waves are considered as a
phenomenologically relevant source of information about the dynamics of sequential phase …

Given the tremendous phenomenological success of the Standard Model (SM) framework, it
becomes increasingly important to understand to what extent its specific structure …

The rich vacuum structure of multi-Higgs extensions of the Standard Model (SM) may have
interesting cosmological implications for the electroweak phase transition (EWPT). As an …

We provide a UV safe trinification theory in which the Standard Model is embedded. Using
recently developed large number-of-flavor techniques, safety is achieved by adding to the …

We study the vacua of an SU (3)× SU (3)-symmetric model with a bifundamental scalar.
Structures of this type appear in various gauge theories such as the renormalizable coloron …