2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186951We consider a class of simplest Majoron models where neutrino- majoron couplings can be in the range $g \sim 10^{-5}-10^{-3}$ leading to the observability of neutrinoless double beta decay with majoron emission. The majoron is a singlet of the electroweak gauge symmetry, thus avoiding conflict with the LEP data on Z decay, which rules out the triplet and doublet majoron models.(latex file, macro matex) 11pp (2 Figures that can be requested)High Energy Physics - Phenomenologytext