Observable majoron emission in neutrinoless double beta decay

Z.G. Berezhiani, A.Yu. Smirnov, J.W.F. Valle
1992 Physics Letters B  
We consider a class of simplest Majoron models where neutrino- majoron couplings can be in the range g ∼ 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.
doi:10.1016/0370-2693(92)90126-o fatcat:c4tr6cdu5ndx5ldcpgvnwtrg7m