Quark flavour conserving violations of the lepton number

Details Quark flavour conserving violations of the lepton number Quark flavour conserving violations of the lepton number

1997-11-28

arxiv.org/abs/hep-ph/9711517v1

Phys.Lett.B422:171-178,1998

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages

Scientific paper

10.1016/S0370-2693(98)00042-2

We study supersymmetric models of lepton and baryon number violation based on an abelian family gauge group. Due to possible lepton-Higgs mixing, the lepton violating couplings are related to the Yukawa couplings and may be generated by them even if they were absent in the original theory. Such terms may be dominant and are not given by the naive family charge counting rules. This enhancement mechanism can provide an alignment between lepton-number violating terms and Yukawa couplings: as a result they conserve quark flavour. A natural way of suppressing baryon number violation in this class of models is also proposed.

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