Majoron emitting neutrinoless double beta decay in the electroweak chiral gauge extensions

Abstract

Fundamental mechanisms for Majoron emitting neutrinoless double beta decay in SU(3)_C x G_W x U(1) models, for electroweak flavor chiral extensions, G_W = SU(3)_L and SU(4)_L are pointed out. Both kinds of known Majoron emitting processes, charged Majoron emitting where the massless Nambu-Goldstone boson itself carries lepton charge, $L=-2$, and the ordinary Majoron emitting where the boson has a small mass are found possible. PACS numbers: 11.15.Ex, 12.60.Fr, 14.80.Cp

18 pages, Revtex, 3 Postscript figures. To be published in Phys.Rev.D(1 May 1998)

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• Quantization of eletric charge, the neutrino and generation nonuniversality
• Minimal extended flavor groups, matter fields chiral representations, and the flavor question
• The electroweak theory based on SU(4)_L X U(1)_X gauge group
• Spontaneous breaking of a global symmetry in a 331 model
• Neutrinoless double beta decay with and without Majoron-like boson emission in a 3-3-1 model
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