A level physics lepton decaysWatch
So basically I know that leptons can decay into other smaller leptons within their generation (their neutrinos) . But it says in my class notes that neutrinos can also decay/change into their corresponding lepton particle.
I don’t really get how this is correct because isn’t the whole point of a decay to become lighter and so more stable?
Could someone please tell me if this is just a mistake in my notes or if I just don’t get it lol.