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 …

We study the contribution of massive dominantly sterile neutrinos, N, to the lepton number
and lepton flavor violating semileptonic decays of τ and B, D, K-mesons. We focus on …

Most extensions of the Standard Model lepton sector predict large lepton flavor violating
rates. Given the promising experimental perspectives for lepton flavor violation in the next …

Matrix element U τ N of sterile neutrino N mixing with ν τ is the least constrained in the
literature amo<? format?> ng the three U α N (α= e, μ, τ) mixing parameters characterizing …

A bstract Motivated by the ATLAS and CMS discovery of a Higgs-like boson with a mass
around 125 GeV, and by the need of explaining neutrino masses, we analyse the three …

We study a supersymmetric version of the seesaw mechanism type III. The model consists of
the minimal supersymmetric extension of the standard model particle content plus three …

We study models in which soft supersymmetry-breaking parameters of the MSSM become
universal at some unification scale, M in, above the GUT scale, M GUT. We assume that the …

A bstract Left-right symmetric extensions of the Minimal Supersymmetric Standard Model
can explain neutrino data and have potentially interesting phenomenology beyond that …

A bstract We investigate models where gauge unification (GUT) proceeds in steps that
include Pati-Salam symmetry. Beyond the Standard Model, we allow for a well-defined set of …

Abstract Charged Lepton Flavor Violation (cLFV) processes like μ → e γ μ→ e γ are rare
decay processes that are another signature of physics beyond standard model. These …