Assertion: neutrino | /r/CapableOf | acquire a small
Facets:
Source sentences:
text: Standard Model (SM) of particle interactions is extended  to include a lepton triplet (Σ +, Σ 0, Σ − ) per family, then the heavy Majorana mass of Σ 0 acts as a seesaw anchor for the neutrino to acquire a small mass, just as in the case of using a singlet N.