We review how the muon anomalous magnetic moment (g− 2) and the quest for lepton flavor
violation are intimately correlated. Indeed the decay μ→ e γ is induced by the same …

The discovery of neutrino masses through the observation of oscillations boosted the
importance of neutrinoless double beta decay (0νββ). In this paper, we review the main …

Abstract Particles beyond the Standard Model (SM) can generically have lifetimes that are
long compared to SM particles at the weak scale. When produced at experiments such as …

This paper describes the physics case for a new fixed target facility at CERN SPS. The SHiP
(search for hidden particles) experiment is intended to hunt for new physics in the largely …

We review the collider phenomenology of neutrino physics and the synergetic aspects at
energy, intensity and cosmic frontiers to test the new physics behind the neutrino mass …

A general classification of flavor symmetries is provided according to their interplay with the
proper Poincaré and gauge groups and to their linear or nonlinear action in field space. The …

We review the particle physics aspects of neutrino-less double beta decay. This process can
be mediated by light massive Majorana neutrinos (standard interpretation) or by something …

A bstract Vector boson fusion processes become increasingly more important at higher
collider energies and for probing larger mass scales due to collinear logarithmic …

We calculate the ratio R ℓ ℓ of same sign (SS) to opposite sign (OS) dileptons in type I and
generalized inverse seesaw models and show that it can be anywhere between 0 and 1 …

The observed pattern of fermion masses and mixing is an outstanding puzzle in particle
physics, generally known as the flavor problem. Over the years, guided by precision neutrino …