Majorana neutrino
= Majorana neutrino
{c}
A <Majorana neutrino> is its own <antiparticle>. A corresponding <mass> term can violate conventional <lepton number> by two. Observing a wrong-helicity charged-current process is nevertheless suppressed by the very small <neutrino mass> relative to its <energy>, rather than having the ordinary charge-conjugate <branching fraction>.