The Majorana nature of neutrinos is strongly motivated from the theoretical and
phenomenological point of view. A plethora of neutrino mass models, known collectively as …

A plausible explanation for the lightness of neutrino masses is that neutrinos are massless at
tree level, with their mass (typically Majorana) being generated radiatively at one or more …

Neutrino oscillations have established that neutrinos ν i have very small masses.
Theoretically, they are believed to arise through the famous seesaw mechanism from their …

Neutrinos are the only particles in the Standard Model (SM) of particle physics that have only
been observed with left handed chirality to date. If right handed (RH) neutrinos exist, they …

A bstract Models of radiative Majorana neutrino masses require new scalars and/or fermions
to induce lepton-number-violating interactions. We show that these new particles also …

We present an overview of searches for violation of lepton flavor universality with a focus on
low energy precision probes using π, K, τ, and nuclear beta decays. We review the current …

Possible models of Yukawa interaction are discussed in the two Higgs doublet model
(THDM) under the discrete symmetry imposed to avoid the flavor changing neutral current at …

A bstract Heavy neutrinos (N) remain one of most promising explanations for the ori-gin of
neutrinos' tiny masses and large mixing angles. In light of broad advances in un-derstanding …

This report summarizes the present status of neutrino non-standard interactions (NSI). After
a brief overview, several aspects of NSIs are discussed, including connection to neutrino …

We propose an extended version of the standard model, in which neutrino oscillation, dark
matter, and the baryon asymmetry of the Universe can be simultaneously explained by the …