Quantum-Field-Theoretical Description of Neutrino Oscillations in Terms of Distance-Dependent Propagatorsстатья
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Аннотация:Neutrino oscillations are described in the framework of a quantum-field-theoretical approach,where the finiteness of distances and time intervals in such processes is taken into account not by means ofwave packets, but by introducing distance-dependent propagators. These propagators are used instead of theFeynman propagators when constructing amplitudes of neutrino oscillation processes in the momentum representation. Within the framework of the approach, neutrino oscillation processes in vacuum and in a magnetic field are described, including those where neutrinos are detected also through the neutral current weak interaction.