Low scale type I seesaw model for lepton masses and mixings

• DOI: 10.1103/physrevd.101.035005
• Publication Date: 2020-02-06T10:12:15Z
• Authors: A. E. Cárcamo Her...; Marcela González; Nicolás A. Neill
• Keywords: Seesaw mechanism; Electroweak scale; Lepton number; Right handed

In contrast to the original type I seesaw mechanism that requires right-handed Majorana neutrinos at energies much higher than electroweak scale, so-called low scale models allow lighter masses for additional neutrinos. Here we propose an alternative model, where neither linear nor inverse mechanisms take place, but spontaneous breaking of a discrete symmetry energy lower model cutoff is responsible smallness light active neutrino masses. this scenario, defined with minimal particle content, can have $\ensuremath{\sim}50\text{ }\text{ }\mathrm{GeV}$ scale. The predictive in sector having only four effective parameters successfully reproduce experimental values six observables.