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 …

Charged lepton flavour-violating transitions would be a clear signal of new physics beyond
the Standard Model. Their search has been carried out in a variety of channels, the most …

The MEG experiment, designed to search for the μ^+ → e^+ γ μ+→ e+ γ decay, completed
data-taking in 2013 reaching a sensitivity level of 5.3 * 10^-13 5.3× 10-13 for the branching …

Most of the free parameters in the Standard Model (SM)—a quantum field theory which has
successfully elucidated the behaviors of strong, weak and electromagnetic interactions of all …

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 …

We describe recent extensions of the program SPhenoincluding flavour aspects, CP-
phases, R-parity violation and low energy observables. In case of flavour mixing all masses …

If neutrino masses and mixings are suitable to explain the atmospheric and solar neutrino
fluxes, this amounts to contributions to FCNC processes, in particular μ→ e, γ. If the theory is …

Leptogenesis is a class of scenarios where the baryon asymmetry of the Universe is
produced from a lepton asymmetry generated in the decays of heavy singlet neutrinos. We …

We perform a thorough study of thermal leptogenesis adding finite temperature effects, RGE
corrections, scatterings involving gauge bosons and by properly avoiding overcounting on …

This article reviews the current theoretical and experimental status of the field of muon decay
and its potential to search for new physics beyond the standard model. The importance of …