Speaker
Description
We perform a comparative analysis of constraints on sterile neutrinos from the Planck experiment and from current and future neutrino oscillation experiments (MINOS, IceCube, SBN). For the first time, we express the Planck constraints on Neff and msterileeff from the Cosmic Microwave Background in the parameter space used by oscillation experiments using both mass-squared differences and mixing angles. In a model with a single sterile neutrino species and using standard assumptions, we find that the Planck data and the oscillation experiments measuring muon-neutrino disappearance have similar sensitivity. We also compare these constraints for the electron-neutrino sterile-neutrino mixing angle in a 1+1 model and discuss how to extend the analysis to a 2+1 flavour model.
