2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/227240The neutral member of a Majorana fermion triplet (Sigma^+,Sigma^0,Sigma^-) is proposed as a candidate for the dark matter of the Universe. It may also serve as the seesaw anchor for obtaining a radiative neutrino mass.11 pagesHigh Energy Physics - Phenomenologytext