CHARGED MAJORON EMISSION IN NEUTRINOLESS DOUBLE-BETA DECAY

We examine in detail the predictions of the charged majoron model, int roduced recently by Burgess and Cline, for 0(+) --> 0(+) beta beta tra nsitions. The relevant nuclear matrix elements are evaluated, within t he quasiparticle random phase approximation, for Ge-76, Se-82, Mo-100, Te-128 and Nd-150 nuclei. The calculated transition rates rum out to be much smaller than the experimental upper limits on possible majoron emission, except in a small region of the model's parameter space.