We study whether the individual violation of the lepton numbers Le,μ,τ in the charged sector can lead to measurable rates for BR(μ → eγ) and BR(τ → μγ). We consider three different scenarios, the fist one corresponds to the Minimal Supersymmetric Standard Model with non–universal soft terms. In the other two cases the violation of flavor in the leptonic charged sector is associated to the neutr...

We propose a new mechanism for a ”small” violation of Pauli Principle in the framework of Quantum Field Theory. Instead of modification of algebra commutation relations for fields we introduce spontaneous violation of Pauli Principle which is proportional to the vacuum fermionic condensate.