Abstract
The current status of the phenomenology of short-baseline neutrino oscillations induced by light sterile neutrinos in the framework of 3+1 mixing is reviewed.
Highlights
In this review we consider the current short-baseline neutrino oscillation anomalies and we discuss their explanation in the framework of the 3+1 mixing scheme
K=1 for N = 3, where U is the 3 × 3 unitary mixing matrix
The Gallium neutrino anomaly [6,7,8,9,10], consisting in a short-baseline disappearance of νe measured in the Gallium radioactive source experiments GALLEX [11] and SAGE [12]
Summary
In this review we consider the current short-baseline neutrino oscillation anomalies and we discuss their explanation in the framework of the 3+1 mixing scheme. Let us emphasize that the 3+1 mixing scheme must be considered as effective, in the sense that the existence of more non-standard massive neutrinos is allowed, as long as their mixing with the three active neutrinos is sufficiently small to be negligible in the analysis of the data of current experiments.
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