First quantized approaches to neutrino oscillations and second quantization

First quantized approaches to neutrino oscillations and second quantization

Neutrino oscillations are treated from the point of view of relativistic first quantized theories and compared to second quantized treatments. Within first quantized theories, general oscillation probabilities can be found for Dirac fermions and charged spin 0 bosons. A clear modification in the oscillation formulas can be obtained and its origin is elucidated and confirmed to be inevitable fro...

Neutrino Oscillations of the Second Class

We consider a second class of neutrino oscillations which can arise when both Majorana and Dirac neutrino mass terms are present in the Lagrangian. These oscillations mix neutrino members of weak current doublets with singlets of the same chirality. A depletion of a neutrino beam would result, with apparent non-conservation of probability. Possible relevance to current oscillation experiments i...

Sterile neutrino oscillations after first MiniBooNE results

In view of the recent results from the MiniBooNE experiment we revisit the global neutrino oscillation fit to short-baseline neutrino data by adding one or two sterile neutrinos with eV-scale masses to the three Standard Model neutrinos, and for the first time we consider also the global fit with three sterile neutrinos. Four-neutrino oscillations of the (3+1) type have been only marginally all...

Introduction to Second Quantization

Neutrino oscillations

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