Sterile Neutrino/Heavy Neutral Lepton Constraints

This website lists the constraints on the sterile neutrino mixing with the three active neutrino flavours of the Standard Model, \(|U_{eN}|^2\), \(|U_{\mu N}|^2\) and \(|U_{\tau N}|^2\), as a function of the sterile neutrino mass \(m_{N}\).

If you use the data from this site please cite the original source and our work [A1].

Indices and tables