Sala Seminarios IFIC (Edf. Institutos de Investigación)
Sala Seminarios IFIC
Edf. Institutos de Investigación
Descripción
The standard theory of neutrino oscillations is critically discussed. It is shown that a wave-packet treatment is necessary for a correct quantum-mechanical formulation of neutrino oscillations. A model of neutrino oscillations in the framework of quantum field theory in which the propagating neutrino and the particles participating to the production and detection processes are described by wave packets is presented. It is shown that this model confirms the correctness of the standard expression for the oscillation length of extremely relativistic neutrinos and the existence of a coherence length.