Speaker
Rishav Roshan
Description
The EDGES anomaly and the ARCADE-2 excess are not explained within the standard cosmological model or by any astrophysical solution and so they might be an indication of new physics. The decays of relic neutrinos into sterile neutrinos provide intriguingly a simultaneous solution to both puzzles. We first build a simple model able to describe the correct values of the parameters, lifetime and mass difference, requested by this EDGES-ARCADE2 combined solution. Then we show that, within such a model, the same EDGES-ARCADE-2 combined solution implies active-sterile neutrino mixing and we show how neutrino oscillation experiments place interesting constraints on the parameters of the model.
