Assertion: lepton's neutrino | /r/HasAspect | majorana masses
Facets:
Source sentences:
text: The right-handed neutrinos have no Standard Model gauge interactions and can therefore have Majorana masses that violate lepton number.
text: The smallest modification to the Standard Model, which only has left-handed neutrinos, is to allow these left-handed neutrinos to have Majorana masses.