Light sterile neutrinos: the current picture from neutrino oscillations
arXiv:1911.03463 · doi:10.1088/1742-6596/1468/1/012120
Abstract
Light sterile neutrinos with a mass around 1 eV have been studied for many years as a possible explanation of the so called short-baseline neutrino oscillation anomalies. Recently, several neutrino oscillation experiments reported preferences for non-zero values of the mixing angles and squared mass differences for active-sterile mixing, which however are not always in agreement. I will review our current knowledge on the light sterile neutrino in the 3+1 model, starting with a separate discussion on the status of the most relevant searches and then analyzing the problems that arise when combining different probes in a global fit.
To appear in the Proceedings of TAUP 2019, Toyama, Japan, September 9-13, 2019. arXiv admin note: substantial text overlap with arXiv:1910.13172
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