When will we know whether neutrinos are Majorana fermions?

[petergreat]

As I understand, the answer will have to come from neutrino-less double beta decay experiments. When will these experiments reach the required sensitivity and gather enough data, to provide us with a definite answer about the nature of neutrinos?

 

[Accidently]

As I understand, the answer will have to come from neutrino-less double beta decay experiments. When will these experiments reach the required sensitivity and gather enough data, to provide us with a definite answer about the nature of neutrinos?

We do not know if neutrinos are Majorana particles and we do not know the hierarchy of neutrinos. Neutrinoless double beta decay experiments are sensitive to the hierarchy of neutrinos. If my memory serves me correctly, 5 - 10 years if neutrinos are inversed hierarchical and hopeless if neutrinos are normal hierarchical.