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arXiv · hep-ph/9410412

Heavy-Neutrino Effects on tau-Lepton Decays

Apostolos Pilaftsis
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Abstract

Minimal extensions of the Standard Model that are motivated by grand unified theories or superstring models with an E_6 symmetry can naturally predict heavy neutrinos of Dirac or Majorana nature. Such heavy neutral leptons violate the de- coupling theorem at the one-loop electroweak order and hence offer a unique chance for possible lepton-flavour decays of the tau lepton, e.g. tau -> eee or tau -> mu mu mu, to be seen in LEP experiments. We analyze such decays in models with three and four generations.

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Apostolos Pilaftsis. 1994-10-31. Heavy-Neutrino Effects on tau-Lepton Decays. https://doi.org/10.1142/s0217732394003439

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