Heavy Dirac/Majorana Fermion Decays

2 Sep 2021, 17:10
Talk in parallel session Neutrino physics and astrophysics Discussion Panel Neutrinos 7


Kevin Kelly (Fermilab)


If a heavy neutrino is discovered, determining its nature, i.e., whether it is a Dirac or a Majorana fermion, will be at the top of the list of the next questions to ask. A natural way to determine this is to analyze the particle's decays and to observe whether they violate lepton number. However, if the final state includes any light neutrinos, this is impossible. In that event, we may still be able to determine the nature by measuring the distribution of decay events. I will show how this procedure may be performed in the context of three-body decays of heavy neutrinos into a light neutrino and a pair of charged leptons.

Primary author

Kevin Kelly (Fermilab)

Presentation Materials

Your browser is out of date!

Update your browser to view this website correctly. Update my browser now