Mini-review: Theory of neutrino mass and lepton flavors

In this talk I will construct a flavor model with a gauge boson below the weak scale. The model is viable and shows the synergy between low energy observables, meson decays, neutrino oscillations, and LHC physics. The role of neutrinos will be highlighted.

The existence for three otherwise identical copies of the standard model fermions with widely disparate masses remains one of the great mysteries of modern particle physics. In this talk, I will introduce a framework, based on a continuous symmetry, for explaining the masses and mixings of the standard model fermions, with particular emphasis on neutrinos, and will discuss means by which this...

We revisit heavy neutrino production via gluon fusion $gg \rightarrow h^* /Z^* \rightarrow Nv$, and its relative importance at hadron colliders with respect to the charged current Drell-Yan $q\overline{q'} \to W^* \to N\ell$ and the vector boson fusion $q\gamma \overset{W\gamma \to N\ell}{\to} q' N\ell$ processes.

In this context, we present, for the first time, resummed threshold...

The discovery of neutrino oscillations calls for an extension of the Standard Model that would generate neutrino masses and mixing. One of the simplest possibilities is the addition of fermionic gauge singlets or sterile neutrinos. TeV-scale realisations of this idea lead to a very rich phenomenology due to the mixing of the new fermions with the left-handed neutrinos of the SM and the large...

The existence of tiny neutrino masses at a scale more than a million times smaller than the lightest charged fermion mass, namely the electron, and their mixings can not be explained within the framework of the exceptionally successful Standard Model. There are four ideas that has been proposed to explain the tiny neutrino masses. These include the see-saw mechanism with a right-handed...

In this talk, we revisit the dimension seven neutrino mass generation mechanism based on the addition of an isospin $3/2$ scalar quadruplet and two vector-like iso-triplet leptons to the standard model. We discuss the LHC phenomenology of the charged scalars of this model, complemented by the electroweak precision constraints. We pay particular attention to the triply charged and doubly...

We develop a systematic procedure of constructing lepton mass matrices that satisfy all the experimental constraints in the light lepton sector of the minimal left-right symmetric model with type-I seesaw dominance. This method is unique since it is applicable to the most general cases of type-I seesaw with complex electroweak vacuum expectation values in the model. Using this method, we...